5 Most Purchased CO2 Systems for Aquariums on Aliexpress

CO2 generator system with adjustable air pressure and water flow

569 Reviews 939 order(s)

Reviews:

Everything arrived whole, works well, feels like a pretty high-quality item. Very pleased, everything is clear, convenient and beautiful. The kit even includes spare gaskets - a small thing, but a nice touch. At first I thought that the pressure gauge was not working, but within a day the reaction accelerated and the needle began to show pressure. The magnetic lock works. The loading is simple - 200 grams of citric acid and 600 ml of water + 200 grams of soda and 200 ml. water. In general, in the first couple of days I was very pleased - the gas moved normally, we'll see how it goes. At the moment I recommend the product.

The pressure gauge works accurately. shows pressure immediately, even when accelerating. on the metal pressure gauge, unlike the black one, the scale is in kg, and there is a green area indicating the optimal pressure. with a pressure of 1 kg, a liter cola bottle can still be pressed a little. I took the proportions from the forum. 200 ml of water per 150 g of lemon. and 200 ml of water per 200 g of soda.

Delivered intact. I am satisfied with the quality of the product. I launched lemon, everything works great. The magnetic valve is connected to a smart socket, CO2 is supplied an hour before the lights turn on and turns off an hour before the lights turn off. I poured water into the bubble counter, the bubbles are visible and easy to count.

Price: 1,022.21 - 2,011.45 rubles.

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Co2 diffuser for aquarium

There is no denying the fact that carbon dioxide plays a very important role in a natural aquarium with live plants. No less important is to have a balanced level. If you supply too much or too little carbon dioxide to your aquarium, you will not achieve ideal growing conditions for your aquarium plants.

Under natural conditions, plants absorb carbon dioxide and release oxygen into water. Generally, aquarium water requires a dissolved carbon dioxide level of 15 to 30 mg/L for good growth of aquarium plants. In high concentrations, carbon dioxide can be toxic to living aquatic organisms, but it is worth noting that it is safe at levels not exceeding 40 mg/l.

By supplying carbon dioxide to the aquarium, you will definitely reach the important level of dissolved carbon dioxide in the aquarium water and get the desired result. Plants in such conditions will begin to feel much better, as in natural conditions, because the only goal when supplying Co2 to the aquarium is to get as close as possible to the environmental conditions of living plants. Your plants will feel great and you will enjoy your aquarium, your small but exquisite aquatic micro-world.

In rare cases, you may have difficulty dissolving carbon dioxide in your aquarium water. These difficulties are directly related to the parameters of aquarium water, namely carbonate hardness. We will definitely tell you about this in this article.

What is a Co2 diffuser?

A CO2 diffuser is part of your aquarium carbon dioxide system. The Co2 supply system usually consists of a carbon dioxide cylinder, a reducer with a body kit for adjusting the carbon dioxide supply rate, a bubble counter, a polyurethane tube and a Co2 diffuser. A diffuser is an additional or stand-alone device, the main purpose of which is to dissolve CO2 supplied from the reducer-regulator into the aquarium water. The diffuser is connected to a tube connected on the other side to a bubble counter. The main function of a diffuser is to convert the supplied gas into tiny bubbles. Such bubbles are lighter than ordinary large bubbles and therefore the dissolution process is much more efficient. It functions similarly to a regular air compressor sprayer except that it *diffuses CO2 into the water.

*Note: DIFFUSE - penetrate, mix by diffusion.

When purchasing a tube for CO2 systems, it is important to remember that it is highly advisable to use tubes specifically designed for this purpose. A polyurethane tube is ideal for Co2 systems.

The polyurethane tube has good resistance to mechanical stress (kinking, squeezing, twisting) and quickly restores its original shape after removing the mechanical stress. Polyurethane is not subject to hydrolysis and has excellent resistance to carbon dioxide, ozone, oils, fuels and microorganisms.

Unlike conventional silicone or PVC tubes, a polyurethane tube does not allow Co2 to pass through its walls and is much more durable.

Diffuser types

CO2 diffusers come in a variety of shapes, sizes, and materials. This includes plastic, glass, and even stainless steel. The simplest diffuser can be made independently; to do this, you need to take a piece of a rowan or birch branch and insert it into the tube. True, such diffusers are short-lived and must be constantly monitored and replaced if necessary. The volume of dissolved gas with such a homemade diffuser will be small. Almost all types of CO2 diffusers are installed inside the aquarium, with the exception of flow reactors and so-called atomizers. We will talk about them a little later in this article.

Be sure to check your aquarium water parameters

A CO2 diffuser will more or less do its job, but it may change the water parameters in your aquarium too much, which in turn will lead to a drop in pH levels to a critical level. Always check the water pH and KH parameters with special tests for aquarium water.

It is important to remember that the lower the Ph and kH levels (acidic and soft water), the less carbon dioxide we need to supply to the aquarium. And vice versa, if you have a high level of Ph and Kh (alkaline and hard), the more carbon dioxide you need to supply. Sometimes, in an aquarium, the level of hardness does not allow carbon dioxide to dissolve in the aquarium water at all, since it blocks this process. Before you start introducing carbon dioxide into the aquarium, it is best to measure the level of carbonate hardness in order to have an idea of the parameters of the aquarium water.

Whenever performing weekly maintenance on your aquarium, inspect your equipment, including your Co2 system. Be sure to count the number of bubbles and make sure you are introducing the right amount of carbon dioxide into your aquarium.

You can buy the recommended products mentioned in the article in our online store. You can see prices and availability of goods in the relevant sections.

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1 Set CO2 System Diffuser Check Valve U Shape Glass Tube Bend Accessory DIY

239 Reviews 470 order(s)

Specification: Condition: 100% Brand New Model: 688120 Material: Rubber and glass Color: Clear Diffuser length: 62.8mm/2.47in U-shaped glass tube length: 65.4mm/2.57in Diameter u- shaped glass and glass diffuser: 2mm/0.07in Quantity: 1 set Applicability: suitable for aquarium

Features: 1. Hard glass, good looking and not easy to break, U-shaped air intake 2. Check valve with stable performance. 3. Bubble counter to impart high counting precision and ultra microporous atomization, which helps produce delicate bubbles. 4. With co2 diffuser, you can effectively create a more attentive co2 system.

Note: 1. We provide clear photographs, measurements where possible. Please check as much as possible to ensure the item is the one you need. 2. The actual item may be slightly different in color from the pictures due to different computer screens, thanks for your understanding. 3. Product size is measured by hand, please allow 0.5-1 inch difference. (1 inch = 2.54 cm) 4. There is no installation manual. Professional installation recommended! Package includes: 1 x Co2 diffuser 1 x check valve 1 x U-shaped glass tube 2 x suction cup
Price: RUB 196.53

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co2 mist-ika

Movement of water. As mentioned above, Tom Barr, when testing his reactor, discovered that micro-bubbles themselves did not produce as good plant growth and perling as his reactor. Once the diffuser was placed on the current and the bubbles spread throughout the aquarium, an effect similar to using its reactor or the ADA diffuser + current method was obtained.

• CO2 micro-bubbles give such a good effect ONLY if there is sufficiently intense water movement in the aquarium. The diffuser itself, in the absence of water movement, will not give such a result in principle!

This reveals another reason why the ADA recommends such a high water turnover of a canister filter (pump 8-10 volumes per hour, water turnover 3-6 volumes per hour) - this is an integral part of the method of effectively delivering CO2 to plants when supplied in the form of micro- bubbles! It is also important to organize the movement of water in the aquarium and install the diffuser correctly.

Setting CO2 supply and gas flow. Instructions for cylinder systems usually contain the following recommendations for calculating the supply of the required number of CO2 bubbles: “At the minimum permissible level of carbonate hardness dKH = 4, you need to take approximately one bubble per minute for every 10 liters of live volume of the aquarium.” If the KH of your water is higher, you can slightly increase the CO2 supply by setting it using the formula: (kH x volume of water in the aquarium) / 30. But these recommendations only give a safe limit for the supply of carbon dioxide without giving the optimal concentration and growth rate of plants. This calculation is applicable only for flow-through internal and external reactors. For diffusers the calculation is different. ADA says that when using ceramic diffusers, the flow should be: for an aquarium 60x30x36cm 2 bells/sec, 90x45x45cm 3-4 bells/sec, 120x45x45cm 3-4 bells/sec, 180x60x60cm 4-6 bells/sec. You need to start feeding at 1 bottle/sec, then gradually increase it while controlling the growth rate of plants, pH, and the reaction of fish and shrimp. ADA recommendation - if a stream of O2 does not come out of the plants, then you need to increase the CO2 supply, if the Caridina japonica shrimp move their claws too slowly - reduce it. An intermediate value is the ideal carbon dioxide supply. The same principle can be used when setting up a CO2 supply with a Hydro ARIO or Tom Barr reactor. The only sure way to more or less reliably find out the concentration of CO2 in water is a drop checker with a calibrated solution. This cannot be done using kH b pH tests - the errors in determining both kH and pH are too large.

Water transparency. Another unique property of micro-bubbles (<0.3mm) is water purification. It's hard to believe, but the water in an aquarium with CO2 spraying becomes crystal clear! This is explained by the fact that micro-bubbles, having an electrical charge, attract negatively charged suspended particles and precipitate them. This effect is called flocculation and is widely used to remove organic suspended matter in water treatment plants. Flocculation is the most important factor in the rapid formation of a biofilm and a colony of heterotrophic bacteria. In addition, it was discovered that micro-bubbles in large quantities in contact with surfaces clean them without the use of detergents. This micro-bubble capability is already being used in spas in Japan, and may be used in medicine. The Olaf Deters website (Clear water - cloudy water) has some information about this phenomenon. Suspended particles that create the optical opacity of water are deposited through adhesion, flocculation, and sedimentation. Most suspended particles in water have a negative charge and repel each other. This prevents flocculation (sticking of suspended particles into large flakes) and sedimentation, which causes long-term turbidity in the water. The positive electrical charge of micro-bubbles causes adhesion (sticking) of suspended particles to the bubble, and then to each other. They help to cause flocculation and the formation of large flakes of suspended particles. By force of gravity, the flakes overcome the frictional forces of water, settle at the bottom, or are sucked into the filter along with particles adhered to them. Sedimentation of suspended particles occurs - the water becomes clearer! ADA Aqua Soil is known to make water noticeably clearer. This is explained by the fact that any substrates with high CEC, such as Profile/Turface, Tesco Premium cat litter/MHK Floran, zeolite, etc., have similar properties. Their colloidal particles, having a negative charge, attract multivalent cations (Ca2+, Fe3+, Al3+, etc.), which attract negatively charged particles from the water and promote flocculation. Almost all minerals used as absorbents act this way due to the presence of a large negative charge, i.e. high CEC. They are often thixotropic minerals (sepiolite and other clays) consisting of microparticles and, when wet, completely dissolve in water. All-natural flocculants are made from such minerals, for example JBL Clynol®, DENNERLE ClearUp! or Easy-Life® Fluid Filter Medium®. These are all high CEC electrostatic minerals dissolved in water (not to be confused with chemical flocculants like aluminum sulfate and polymers!). A similar effect is achieved by adding ferric chloride FeCl3 to water (see Olaf Deters website, German). At the same time, too much negative charge of the substrate which is not neutralized by multivalent cations (for example, the same substrate with a high CEC in water bodies on saline soils with an excess of monovalent Na- cations) gives the opposite effect - too much turbidity of the water. In this case, Al(SO4)3 is added to the water. Spraying micro-bubbles of CO2 allows you to do without chemicals and make the water crystal clear. Flocculation is not only important for aesthetic reasons, but also plays a vital role in the ecosystem. Removing suspended organic matter reduces the growth of all algae, especially red algae. See also the Tubidity section in Diana Walstad's Ecology of the planted aquarium, p.134.

Micro-bubbles and CO2 supply by fermentation method. A ceramic diffuser requires not only higher gas flow, but also high pressure. The fermenter can provide sufficient pressure and gas flow for no more than a few days, so ceramic diffusers are used only when CO2 is supplied from a cylinder. Fortunately, microbubbles can be produced using three other reactors. This is a diffuser-pump Ferplast CO2 Energy Mixer, Hydor ARIO Turbo Air Pump (aka Hydor CO2 Turbo Diffuser), a reactor designed by Tom Barr, or even simply supplying gas to the impeller of a small internal pump at min. 180 l/h. The best yeast - SAF-MOMENT Fast-acting yeast. They contain a rehydrant, so gas production begins literally in 20-30 minutes without “manual” rehydration. Pakmaya® brand yeast is significantly worse. Recipe for a 60l aquarium: 1.2l of water 35°C, 150g sugar, 0.5 teaspoon of dry fast-acting yeast SAF-MOMENT. After a week, change the solution. For an aquarium 90-120cm you need to put TWO 1.5l fermenters and add 150-200g of sugar. (see best practice) Change the solution every week in one of the fermenters - this way the gas supply will be uniform and will never fall below the required 2-4 bells/sec. Any tag without inscriptions will help you keep track of which container to change the solution in this week. When changing the solution in one container, transfer the tag to another container in which the solution has already stood for a week. In a week it will be clear which fermenter contains the old solution, i.e. it has been standing for TWO weeks already. I insert a simple bamboo stick into Kwazar

Hydor ARIO Turbo Air Pump / Hydor CO2 Turbo Diffuser I tried spraying with the Hydor ARIO Turbo Air Pump (aka Hydor CO2 Turbo Diffuser) in December 2006. The aquarium was Juwel Rio 180l (water 135l) with CO2 supplied by fermentation method, lighting - 10 hours a day, 2 x T8 Osram 30W 765 + T5 Sylvania Grow-Lux 39W 8500K + T5 Sylvania Aquastar 39W 10000K. Filter - Eheim Ecco 2233 with water circulation 360 l/h + circulation pump 600 l/h. Before that, I supplied gas to the pump impeller at 600 l/hour. It broke the gas into fairly small bubbles, but about half of them were larger than 0.5mm. However, the next day, 4-5 hours after turning on the light, I observed massive perling. These were oxygen bubbles, not CO2. It’s easy to check - apply gas at night, and in the morning you will see that the plants are not covered with bubbles. This means that during the day the bubbles covering the leaves of the plants were really pure O2. You can also observe the release of oxygen from the plants - this can be seen throughout the aquarium. A few days later I purchased a more efficient sprayer - the Hydor ARIO 2 aerator ($14) (photo). Now (2006) This device perfectly breaks the gas into tiny bubbles. Hydor produces three sets of CO2 supply to the aquarium - CO2 GREEN NRG Advanced, CO2 green NRG Exclusive by fermentation method - CO2 GREEN NRG Natural. All three use this unique CO2 reactor. It is a mini-pump with a gear impeller for breaking gas bubbles. CO2 is fed into the “collar” around the water release hole located in the ring, and is broken by a gear into millions of micro-bubbles. The pump sucks water through the top and releases CO2 bubbles from the same side. This slows down the rise of bubbles, and very high turbulence in the outgoing stream increases the dissolution of CO2 by 40% compared to a ceramic diffuser (according to the manufacturer). With such reactors, by supplying CO2 using the fermentation method, you can turn off the gas supply at night(!), just like when using a diffuser and balloon system - just connect the CO2 reactor to the lighting timer. Gas from the fermenter will be supplied around the clock, and CO2 will be dissolved only during the day. I connected ARIO (without upgrades) to two 1.5L fermenters from a KWAZAR sprayer. This time I received mass perling four hours after turning on the light. This was not observed even with a bell-type reactor area of 85 cm2, although the plants always grew very well (but without perling). Almost all users who tried the spraying method noted the appearance of mass pearling 3-5 hours after turning on the light, although previously highly efficient flow reactors that gave a CO2 concentration of ~30 mg/l did not produce pearling.

The Hydor CO2 Turbo Diffuser kit includes a mesh cap that protects the gear from plants, pebbles and snails. Its more important function is that it actually turns it into a Venturi reactor designed by Tom Barr. The same effect with Hydor ARIO can be achieved by installing it upside down and placing a transparent cap on the collar (part C) as shown in the figure below. This reactor is not nearly as invisible as the ADA ceramic diffuser, etc., and in a species aquarium it spoils the aesthetics. Installation in the ground will not change much - the wire is too massive. The ADA company says that the installation depth of the diffusers does not matter, so I discarded my option with the inverted Ario (Fig.

, pdf 894kB). The main thing is that the water circulation is ADA compliant.

ATTENTION! Hydor ARIO was designed as an aerator, and it sucks in air quite strongly. This can lead to the fact that when connected to the fermenter, the slightest leak in the connections of hoses, tees, taps, check valves cannot withstand strong suction and ARIO begins to draw in air instead of CO2 without your knowledge. Judging by the bubbles, you will think that the CO2 supply from the fermenter is very large, but instead you will partially aerate the water. To reduce the vacuum in the pump chamber, you need to modernize it a little. Remove part C together with part F

prying under it with scissors near the hook on the pump body. Do this carefully, without jerking - there is a rotor with a gear between them! Now pry between part C and the fitting on part F and separate them. Drill a 3-5mm hole in part F opposite the hose fitting (see figure). Suction will decrease. This is enough to correct the situation when installing the pump at the bottom of an aquarium 45 cm high, but not enough if you place the pump upside down at the surface of the water. In this case, make one or two more holes. Don't make one big one - gas will escape through it rather than being sucked into the pump impeller. Perhaps the Hydor CO2 Turbo Diffuser does not have such suction.

If you make a fermenter out of plastic bottles, even this will not help - the strong vacuum from Hydor ARIO #3 flattens them, and the ferment can get into the aquarium. If it is expensive for you to make a fermentation from garden sprayers, instead of a beer bottle it is much better to take a 2-5 liter plastic canister, they are everywhere and only cost $2-4. It’s better to have a square one and a wider neck. It does not have an emergency valve like a sprayer, but the container will not burst - the hose will come off or burst much earlier. The installation depth of diffusers does not play a special role.

• Be sure to install a check valve from the compressor - the bubbles will be much smaller and more uniform in size, and the operation of the reactor will be noticeably quieter.

Hydor ARIO is an excellent reactor for CO2 atomization. Absolutely all bubbles will be 0.2 mm in size or less, and not all of them immediately go to the surface - a significant part circles for a long time in the water column, enriching the water with CO2. The option shown in the figure (central tube Ø22mm) was very effective. Approximately 10% of the larger bubbles go to the surface, 10% are sucked into the central tube (i.e. dissolved), and 80% of the almost invisible bubbles are sprayed throughout the aquarium. It is very important that there is sufficient water circulation in the aquarium - bubbles should be distributed throughout the entire aquarium. According to the ADA (and Tom Barr) recommendation, this is 3-5 aquarium volumes per hour, which is fully consistent with the water turnover recommended by the ADA for Nature Aquarium. I also fully endorse the suspension settling effect. When CO2 is supplied by spray, literally within 24 hours the water seems to disappear. Transparency is amazing! My experience has shown that for a 180L aquarium with two 1.5L fermenters, it is necessary to turn off the CO2 supply at night - fresh starter produces too much CO2, and by the morning the fish are breathing very heavily. Focus on the fish and the perling: if it is there, try turning it off; if the perling disappears, try not turning it off and make sure that in the morning the pH is not lower than 6.6, and that the fish and shrimp show no signs of a CO2 overdose. Atomizing CO2 using one such reactor or ceramic diffuser can only provide sufficient CO2 concentration for an aquarium of a certain volume (90cm?), even if the gas supply is large (~4 bubbles/sec). If the aquarium is less than 90 cm, you need to reduce the gas supply by connecting only one fermenter. At higher flow rates, the inverted version with a cap on the ARIO 1 does not work well - the bubbles will be too large, and the noise will be too loud because too much gas accumulates under the cap. For an aquarium of 120 cm or more, you will need to install older ARIO models - #3 or 4, and for very large aquariums - two reactors, or put ARIO in a sump. The noise from ARIO is very weak - after a couple of weeks of operation, the hum becomes almost inaudible, only clicks from the breaking of bubbles by the pump gear (as when gas is supplied to the pump impeller).

New Hydor ARIO 2008. A little later (2-2008) I tried the new modelHydor ARIO 3 5W 200l/h with reduced vibration and noise (four models are available

). I must admit that it works noticeably better than my old Hydor ARIO 1. The pump’s high performance produces fog even when CO2 is supplied at more than 6 puffs/sec. There is no need for such a design with a cap as shown in the figure above - it can simply be placed at a depth of 8 cm from the surface of the water by securing it to a standard holder (the rotor is horizontal). The new ARIOs have a transparent “collar” that prevents sand and plants from getting into the pump even with direct contact(!). The “collar” rattles a lot - glue it with silicone. In the inverted version, it is quieter than ARIO 1, even when installed near glass on a standard holder, and with a large gas supply it produces smaller bubbles. To reduce gas suction, be sure to drill a hole in part F as mentioned above. To reduce the size of the bubbles, fill the gas supply fitting with silicone by inserting a needle from a 2 ml disposable syringe. Insert the resulting “plug” into the fitting and put on the hose. Gas will be supplied in much smaller portions, there will be more very small bubbles, and less noise. Well, if you make it with a cap like in the picture, you will get a very powerful diffuser. The water movement from ARIO 3 is too big for a 90cm aquarium, it is better to use it for a 120cm tank. I prefer the mount as in the picture (without a cap) - this way its visibility in the aquarium is minimal. Ceramic diffusers require high pressure and can only be used with a CO2 supply from a cylinder system. In this case, a clear ADA glass diffuser or its clone is better.

Sometimes ARIO makes quite a lot of noise. This can be from too much gas supply, from the installation position (horizontally worse), but most often this happens due to contamination of the foam filter at the water inlet and/or winding of algae fibers around the gear - wash them and the noise will disappear.

I highly recommend purchasing the Hydor CO2 Turbo Diffuser/Hydor ARIO Turbo Air Pump, especially if you are supplying CO2 via fermentation or for a non-species aquarium. There is simply nothing better for the fermentation method. The Tom Barr reactor is good, but it is much larger and still needs to be made. The price will be the same. I would say that the Hydor CO2 Turbo Diffuser, even installed differently than in the picture, is the killer of the Barr reactor: the efficiency is no less, much more compact, low noise, and it is a finished product for the same money as a DIY kit. The mutually opposing water flows in the Hydor CO2 Turbo Diffuser create turbulence and CO2 dissolution no less than that of a Barr reactor.

I also made a great sump module by gluing the Hydor ARIO to the Hydor SELTZ - MISTer PUMP. If the reactor is growing blackbeard, clean it weekly with hydrogen peroxide, glutaraldehyde, or chlorine, otherwise it will turn into a super algae spore dispenser.

Ferplast CO2 Energy Mixer. This is simply an outstanding CO2 atomizer! Ferplast CO2 Energy Mixer is an order of magnitude better than Hydor ARIO. Remove the transparent container, insert a needle from a 5-10ml syringe by making a hole in the cap with a hot needle above the impeller (left), and connect the CO2. Get a mechanical CO2 nebulizer. It produces much smaller bubbles than Hydor ARIO, almost invisible, and ALL the same size. Previously, it was believed that bubbles of such a small size were achievable only in salt water (water density is higher), and only with the help of a pump with a special needle impeller (the so-called neddle wheel impeller) or a piece of plastic mesh on it. What gives such an amazing effect - the horizontal arrangement of the impeller and the breaking of gas in the upper part of the chamber? It is much quieter than the Hydor ARIO, less bulky, much easier to clean, easier to attach to the wall of the aquarium, nice gray color (remove the sticker!). The bubbles rise up very slowly, and the current carries them well throughout the aquarium. Install a Ferplast sprayer and ADA filter tubes, and the aquarium will fill fairly evenly with CO2 bubbles. If you supply CO2 by fermentation, you can use it to make an analogue of the Tom Barr Venturi reactor. You will have to clean the foam filter on top every week. With the Hydor ARIO, something constantly wraps around the gear or jams it, which is very annoying. Ferplast CO2 Energy Mixer is unrivaled. After three years of use, I like it more and more...

* perling - from English. perling - when all plants are covered with oxygen bubbles - evidence of maximum plant photosynthesis and water saturation with oxygen more than 100%

DIY internal Reactor, great for Yeast CO2 users!, Tom Barr Venturi Design, Tom Barr CO2 issues? Read this - 09-22-2005, 08:22 PM (CO2 spray supply as per ADA) CO2 mist, aeration and gases, Tom Barr using hydor airo airator with co2, dschmeh, 10-11-2006 Clear water - cloudy water, Dr. Gerd Kassebeer AH 7/97, S. 612 Diffusion, analysis of water movement patterns and placement of diffusers in aquariums Takashi Amano Microbial ecology of organic aggregates in aquatic ecosystems, Meinhard Simon, Hans-Peter Grossart, Bernd Schweitzer, Helle Ploug; AQUATIC MICROBIAL ECOLOGY, Vol. 28:175–211, 2002; www.int-res.com New-school CO2 techniques, George Farmer

CO2 atomizer for 60~300L plants

306 Reviews 1198 order(s)

Specification: Diameter: 3cm/1.2in Length: 8.7cm/3.4in Material: Glass

Features: -High efficiency diffuse carbon dioxide -CO2 bubble counter built into this unit -Easy to install and use, no additional power required -Suitable for 15-80 gal tanks. (60l-300l)

Package included: 1x CO2 diffuser

Price:

0.66 rub.

RUR 242.70

BONUS for newbies

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Aquarium CO2 Diffuse Glass Drop Checker for CO2 Tester

962 Reviews 1678 order(s)

Reviews:

The parcel took a very long time, the track is not tracked, the order was paid on 05/04, the parcel was received on 06/14 The bottle was packed in a bubble wrap, everything was intact, I ordered a glass drop checker from another seller which was packed less carefully

Delivery is long, about a month and a half to Moscow. Everything arrived intact. The seller did a great job packing everything well. I recommend it if you are not in a hurry to receive it.

Came to the Moscow region in 20 days. Packed in several layers of bubble wrap. Everything is whole.

Price: 116.08 - 153.01 rub.

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