Fluval CO2 Kits

Carbon Dioxide is essential to plant growth. It’s natural state is a gas, but it can be readily dissolved in water. Adding a Fluval CO2 Kit to your take can help to ensure that there is sufficient carbon dioxide in the tank for your plants to grow optimally. This can help to ensure that algae does not start to take over your tank.

Although increasing carbon dioxide levels can be beneficial for your tank, it is also important to ensure that there are not excessive CO2 levels in your tank. Excess CO2 can lead to increased acidity in your tank. It is therefore important to monitor the levels.

Below we take a look at the Fluval CO2 Kits and methods of monitoring the levels.

Fluval CO2 Kit Reviews

Fluval CO2 Kit 20g / 0.7 ounces

Fluval Mini Pressurized 20g-CO2 Kit - 0.7 ouncesA Little Bit Fishy Score: 4/5
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The mini Fluval CO2 Kit uses a 20g / 0.7 ounce cartridge. It helps to ensure that the plants in your aquarium have sufficient CO2 for their needs. It is designed for small, planted aquariums – those up to 15 gallons in size. The kit includes:

  • Regulator value
  • Cartridge bracket
  • Disposable CO2 cartidge
  • Internal CO2 diffuser
  • Hose

Fluval CO2 Kit 45g / 1.6 ounces

This Fluval CO2 kit 45g is the middle of the range. It helps to ensure that the plants in your aquarium have sufficient CO2 for their needs. It is designed for medium sized, planted aquariums – those up to 30 gallons in size. The kit includes:

  • Regulator value
  • Cartridge bracket
  • Disposable CO2 cartidge
  • CO2 ceramic diffuser
  • Hose

There are also 45g replacement canisters available.

Fluval CO2 Kit 95g / 3.3 ounces

Fluval 17557 Pressurized 3.3 oz CO2 KitA Little Bit Fishy Score: 3/5
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This Fluval CO2 Kit uses a 95g / 3.3 ounce cartridge. It helps to ensure that the plants in your aquarium have sufficient CO2 for their needs. It is designed for small, planted aquariums – those up to 50 gallons in size. The kit includes:

  • Disposable 95g CO2 cartridge
  • Check Valve
  • Regulator valve
  • CO2 Ceramic Diffuser
  • Bracket
  • Bubble Counter
  • Hose

The Fluval CO2 kit has anti-kink support to help provide consistent CO2 supplementation to your aquarium

At the time of writing Fluval were offering a two year limited warranty.

Hagen Fluval Pressurized CO2 Kit w/ 3 Replacement Cartridge Bundle (95g)

VASCA Hagen Fluval Pressurized CO2 Kit w/ 3 Replacement Cartridge Bundle (95g)A Little Bit Fishy Score: 3/5
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This kit packages the Fluval 95g CO2 along with 3 replacement cartridges. It is perfect for those introducing carbon dioxide to their tank for the first time. Bringing together the kit – and enough replacement cartridges to ensure that you aren’t running around trying to purchase a new cartridge when your first one runs out!

Accessories / Refills

Fluval 20g-CO2 Disposable Cartridges – 3-Pack

Fluval 20g-CO2 Disposable Cartridges - 3-PackA Little Bit Fishy Score: 4/5
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A set of 3 replacement cartridges for the Fluval Mini CO2 kit. Each canister is 20g / 0.7 ounces – the same as the original cartridge that came with your kit. Perfect for replenishing your stock and ensuring that your planted tank has enough!

Replacement Cartridge – 45g / 1.6oz

Fluval 17555 1.6oz CO2 Cartridge (1 Pack)A Little Bit Fishy Score: 4/5
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A single replacement cartridges for the Fluval 45g / 1.6 ounce CO2 kit. Canister is 45g / 1.6 ounces – the same as the original cartridge that came with your kit. Perfect for replenishing your stock and ensuring that your planted tank has enough!

Replacement Cartridge – 95g / 3.3oz

Fluval 17558 3.3oz DisposableCO<sub>2</sub> Cartridge (1 Pack)”><span>A Little Bit Fishy Score: 4/5<br> </span><span class=Check on Amazon.com

A single replacement cartridges for the 95g / 3.3 ounce model. Canister is 95g / 3.3 ounces – the same as the original cartridge that came with your kit. Perfect for replenishing your stock and ensuring that your planted tank has enough!

Fluval CO2 Indicator Kit

Fluval CO2 Indicator KitA Little Bit Fishy Score: 4/5
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When adding CO2 to your tank it is important that you don’t add too much. Excessive CO2 can be especially harmful to aquatic live as when dissolved it increases the acidity in your tank. This kid will enable you to monitor the levels and guide you to accurate dosing of CO2 – ensuring fish and plants live in a healthy environment

Conclusion

In principal, Fluval CO2 Kits are a great addition to planted aquariums. Bear in mind, however, that pressurized gas can difficult to use. Any mistakes (or product imperfections) will be magnified. If you’re going to purchase one of the kits we’d recommend getting a pH meter and a CO2 indicator kit as well.

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