Aquarium CO2 Equipment

Aquarium CO2 Equipment

Discover the range of aquarium CO2 equipment available from Finest Filters, which includes a wide variety of CO2 equipment for planted aquariums. It’s important to monitor the carbon dioxide levels in your tank, with the most consistent level between 15 mg/l (milligrams per litre) and 30 mg/l. Find all of the CO2 aquarium kit you need to monitor your tank’s levels in our collection.

Our planted aquarium CO2 equipment features the Ista Professional CO2 System, which is a great starter set that comes with a variety of accessories, including a solenoide regulator and a diffuser. You’ll find Ista aquarium CO2 equipment such as a CO2 Diffuser Chamber, UFO-style CO2 Ceramic Diffusers, and Mini CO2 Systems for use with smaller tanks too.

Our collection of CO2 equipment for planted aquariums also includes Disposable CO2 Cans, which come in a pack of 3 and are designed to be placed vertically in your diffuser. You can shop Ista CO2 Tablets too, with 100 tablets in each bottle. These aquarium CO2 tablets will dissolve in your aquarium’s water over the course of 2 hours, supporting your plants to grow and thrive. Just one of these carbon dioxide tablets is enough for 20 litres of water - if you don’t have space to store lots of aquarium CO2 equipment, these are a great alternative.

For planted aquariums, we also have a dedicated aquascaping collection, which includes rocks, plants, and other accessories. Shop our full collection of aquarium equipment today, or contact us if you have a question about any of our products. 

Items 1-20 of 24

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  1. Ista CO2 Indicator Solution Planted Aquarium
    Ista CO2 Indicator Solution Planted Aquarium
    £4.49
    Out of stock
    Just inject 1 cc of CO2 Indicator Solution into the cap of the CO2 indicator. Adding tank water is not required. We recommend you change the solution only once a month, not necessarily every time maintenance is done in your aquarium. Learn More
  2. Ista Professional CO2 System
    Ista Professional CO2 System
    £149.99

    The Ista Aluminium Cylinder Set is an ideal starter CO2 set for planted aquariums.

    This kit comes supplied with all accessories including solenoide regulator, diffuser etc for an instant CO2 setup in your aquarium.

    Learn More
  3. Ista 2 in 1 CO2 Diffuser With Bubble Counter
    Ista 2 in 1 CO2 Diffuser With Bubble Counter
    As low as £7.99

    The Ista 2 in 1 CO2 diffusers have the advantage of having a built in bubble counter as well as the diffuser plate.

    The 2 in 1 diffusers are available in a choice of 3 sizes. The ceramic diffusion plate ensures the finest possible CO2 bubbles to give the best absorption into the aquarium water.

    Learn More
  4. Ista UFO CO2 Ceramic Diffuser
    Ista UFO CO2 Ceramic Diffuser
    As low as £5.99

    The Ista round UFO style diffusers are available in a choice of 3 sizes. The ceramic diffusion plate ensures the finest possible CO2 bubbles to give the best absorption into the aquarium water.

    Available in 3 sizes.

    Learn More
  5. Ista Vertical CO2 Diffuser Chamber
    Ista Vertical CO2 Diffuser Chamber
    £6.49

    The Ista vertical style diffuser chamber is an effective way of diffusing CO2 into your planted aquarium.

    This dual chamber layout gives a higher area for CO2 diffusion to maximise efficiency. Made from high quality transparent acrylic which offers excellent viewing of CO2 bubbles.

    Learn More
  6. Ista CO2 Tablets x 100
    Ista CO2 Tablets x 100
    £12.99

    The Ista co2 tablets will provide the Co2 needed for your aquarium plants to grow and thrive.

    By gradually dissolving in the water to release Co2 into the aquarium water over the space of 2 hours to completely dissolve completely.

    Learn More
  7. Ista Waterplant CO2 Diffuser Set
    Ista Waterplant CO2 Diffuser Set
    £16.49
    Out of stock

    Ista CO2 starter set supply kit. These sets can be easily adapted to any kind of tank. Ideal for beginners, and low light tanks, with low demands for CO2.  The CO2 could last for months, if setup correctly.  For low light tanks, the rate of 1 bubble every 5 seconds can guarantee the usage for months.  Place the CO2 diffuser to the very bottom of the tank to achieve the best CO2 diffusing effect.

    Learn More
  8. Ista Horizontal CO2 Diffuser Chamber
    Ista Horizontal CO2 Diffuser Chamber
    £5.99

    The Ista horizontal style diffuser chamber is an effective way of diffusing CO2 into your planted aquarium.

    These diffusers are frequently used with the disposable CO2 cartridges, and the popular Ista CO2 starter set.

    Learn More
  9. Ista Spring Check / Non Return Valve
    Ista Spring Check / Non Return Valve
    £5.49

    The Ista stainless spring check valve is an effective none return valve which can be used with CO2 systems and aquarium air pumps alike. This valve has easy tighten screws to firmly secure the airline in place to prevent it coming off under pressure.

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  10. Ista Mini CO2 System for Planted Aquarium
    Ista Mini CO2 System for Planted Aquarium
    As low as £44.99

    The Ista mini CO2 supply sets are an ideal way to introduce CO2 into your aquarium to help with plant growth. These professional systems come complete with all parts for you to effectively dose CO2 into your aquarium. This set is complete with a Mini CO2 diffuser with bubble counter, CO2 flow regulator, airline tubing and CO2 disposable cylinder with stand.

    This kit comes with a professional CO2 flow regulator to allow you to effectively control the amount of CO2 being dosed to the aquarium.

    Avilable in two different sizes.

    Learn More
  11. Ista Corner CO2 Diffuser Chamber for Planted Aquarium
    Ista Corner CO2 Diffuser Chamber for Planted Aquarium
    £6.99

    The Ista corner style diffuser chamber is an effective way of diffusing CO2 into your planted aquarium. The corner design allows the diffuser to easily be hidden in the corner of the aquarium allowing for the air line to be hidden out of sight too.

    These diffusers come with a silicate suction cup which assures reliable and firm attachment. The CO2 hose can be fastened to the diffuser in a vertical position which prevents the pipe bending.

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  12. Ista Stainless Steel CO2 Check Valve
    Ista Stainless Steel CO2 Check Valve
    £3.99

    The Ista stainless steel check valves prevent backflow of water to CO2 equipment.

    These check valves are very durable and last a lot longer than traditional plastic check valves. They will accept a standard air line connection (4mm internal / 6mm external diameter).

    Learn More
  13. Ista Glass CO2 Diffuser External Filter Outlet
    Ista Glass CO2 Diffuser External Filter Outlet
    £29.99

    The Ista glass CO2 diffusers are a handmade, elegant diffuser that will connect to the outlet of an external canister filter to allow effective dissolving of CO2 into the water column.

    Simply connects to the canister filter outlet tubing, replacing the original filter outlet.

    These diffusers are available to suit either a 12mm or 16mm internal diameter hose.

    Learn More
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