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Aquario NEO CO2 - CO2 system

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Neo CO2 is a combinational item designed to suply natural CO2 from stabilized metabolism of bacteria into aquarium. CO2 is essential to grow beautiful, healthy plants.

  • Continuous CO2 supplement for 50 days

  • Comes with high-quality acrylic diffuser

  • Contains 2 BioRefill sets.

  • Low maintenance cost

  • Ready to use

Below 20 °C bacteria stop producing CO2. For better result use Neo CO2 warmer. 


Availability: In stock

22.74 EUR

YOU GET BONUS POINTS after your purchase. The points can be used for 1 year after the purchase. 1 point = HUF 1 (about EUR 0.00345)

GOOD SHIPPING PRICES. Favorable shipping prices for all EU countries. Check your country from the list.

SECURE CREDIT CARD PAYMENT. You can safely pay with credit card - you will be redirected to the CIB Bank secure site! We do not receive any card data!

TRANSPARENT BUSINESS. You are buying from one of the top Aquascaping companies in the world. Green Aqua is a known and respected business. Your orders are safe with us.

QUICK ORDER DELIVERY. We have a uniquely huge stock of goods. Our delivery is very quick. Backorders are limited with us.

PROFESSIONAL CUSTOMER SUPPORT. We emphasize on communicating with our client. We all come from the Aquascaping hobby, we would like to help you with your question.

INSPIRATION. Green Aqua has a world-famous Aquascaping Gallery in Törökbálint, Hungary with 22 planted tanks.







What makes Neo CO2 different

1. Top-fermenting
Neo CO2 is fermented only on the side jelly and water meets, which makes proper amount of co2 production last longer as the micro-organism eats the nutrition jelly from the upside to the downside.

2. Reusable
Neo CO2 reproduces CO2, if only the jelly is still left with a simple process.

3. Delicate accessories
Neo CO2 basically offers 4 gadgets of hose, diffuser, cap, Bio refill , plastic sticker to help convenience for customers.

4. Exclusive ceramic diffuser
Neo CO2 basically offers exclusive ceramic defuser which helps making sophisticated Co2 bubbles. Simply washed and pre-permanent.

How to use

  1. Put 300ml of warm water (About 30℃. Hot water 50%+ normal water 50%) into the container.
  2. After closing the cap, shake at least 100 times until thoroughly mixed.
  3. 24 hours later, it turns into Jelly.
  4. Put in 1 package Neo co2 Bio.
  5. Put in 1 cup (about 200ml) of warm water ((40~50℃.)
  6. After caps connect the diffuser, then co2 comes out after a while
  7. When Neo co2 make a little co2 , only the upper water needs to be fully changed except the jelly.
  8. Process #4, #5, #6 comes along later on ( 7,8 process= Re-setting process)

Please follow the bellows for better use.

  1. When you put bio-refill and pure water 200ml into the container, please never shake the container. If not, the product’s content may leak out into the aquarium tank.
  2. The quantity of CO2 decreases slowly as time passes.
  3. The water upside the jelly smells of wine.
  4. Leakage of the products out into the aquarium is not good to fishes.
  5. Below 15℃, CO2 can not be produced.
  6. Even delicate adjustment and use of solenoid valve can damage the container.
  7. If bubbles from the diffuser go bigger, put it in bleach liquid for about 5 minutes and wash it with hot water 2~3 times. Then reusable.

Additional Info

NameAquario NEO CO2 - CO2 system
Aquarium SizeBelow 50L

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Special product delivery

Our main shipping provider - GLS is only delivering our packages up until a certain weight. In some extreme cases - involving shipping of big aquariums, furniture - we will calculate a custom shipping cost, after receiving your order. We will only ship the purchased products after you have confirmed this shipping cost with us.

Our goal is to deliver the plants as quickly as possible to your address, so we are making regular (two times per week) orders to our manufacturers and will send you the fresh plants with GLS as soon as they arrive to us. We also have a uniquely high stock, with hundreds of plants. Please read our terms and conditions.

We would like to inform you that according to the EU regulations we are not allowed to ship live animals or dangerous goods (such as CO2 bottles in example) through our delivery partners. Please note that these can only be picked up at our store. The list of the dangerous goods on sale by Green Aqua can be found here.

Please protect your purchase by always inspecting the package right after delivery. In case of visible damages on the exterior of the package you will need to sigh a written damage form IN THE PRESENCE of the delivery agent! We can only guarantee replacement or resending of any goods if a written damage form or claims form is filled at the time of the delivery! With seamlessly undamaged packages on the exterior, you have 7 days to report any missing or damaged goods from the interor of the package.
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