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.
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Ista CO2 / Air Pipe Holder£2.99The Ista CO2 Air Pipe Holder set is ideal for preventing kinking of the airline / CO2 tube in the aquarium.
The pipe holders simply clips onto the rim of the aquarium allowing, you to clip the airline into the smooth bend preventing kinking. This also prolongs the lifespan of the air / CO2 tube.
Suitable for all 4/6mm tubing. Pack contains two clips and two suction cups.
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Ista CO2 Cylinders - Top AttachingAs low as £55.99Ista’s CO2 Cylinders are made from quality aluminum to make them incredibly hardwearing and long lasting. The bottles are prefilled and also refillable, so they can be used over and over again.
The Ista Cylinders have been approved by the Technical Inspection Association (TUV) for safety standards, providing peace of mind during use.
We have these cylinders available in four sizes: 500ml, 1 Litre, 2 Litre and 3 Litre.
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Ista CO2 Cylinders - Side AttachingAs low as £59.99Ista’s CO2 Cylinders are made from quality aluminum to make them incredibly hardwearing and long lasting. The bottles are prefilled and also refillable, so they can be used over and over again.
The Ista Cylinders have been approved by the Technical Inspection Association (TUV) for safety standards, providing peace of mind during use.
We have these cylinders available in three sizes: 1 Litre, 2 Litre and 3 Litre.
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Ista Mini CO2 System for Planted AquariumAs low as £44.99The 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.
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Ista Replacement CO2 Pressurised Cartridge for Professional System 45g / 88gAs low as £17.99Replacement Ista disposable CO2 cartridges for the Ista professional CO2 system.
Available with both 45g and 88g CO2 cartridges. Please select the option required from the drop down menu when ordering.
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Ista Corner CO2 Diffuser Chamber for Planted Aquarium£6.99The 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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Ista Replacement Ceramic for 2 in 1 DiffuserAs low as £3.99Replacement Ceramic for the Ista 2 in 1 CO2 diffusers.
Available for the Small, Medium and Large diffusers. Please select size of your diffueser from the drop down menu.
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Ista Replacement Ceramic for UFO DiffuserAs low as £4.99Replacement Ceramic for the Ista UFO CO2 diffusers.
Available for the Small, Medium and Large diffusers. Please select size of your diffueser from the drop down menu.
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Ista Stainless Steel CO2 Check Valve£3.99The 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).
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Ista Glass CO2 Diffuser External Filter OutletAs low as £29.99The 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.
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Ista Twin Gauge CO2 Regulator & Solenoid (Side Attaching)£109.99The Ista premium pack is a CO2 controller with included regulator, solenoid valve and bubble counter. The regulator has a hand air-tighten design meaning no extra tools are required to fit this to a CO2 canister. Comes fitted with a Standard UK 3 pin plug.
The included bubble counter allows you to read how many BPS (bubbles per second) are being put into the tank. This pack also includes a CO2 indicator which allows for easy monitoring of the CO2 level within your aquarium. The included diffuser is made to be efficient at diffusing the CO2 and has a replaceable ceramic disc.
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Ista Waterplant Disposable CO2 Can x3 Pack£19.95Box of 3 x disposable CO2 canister replacements for the Ista or any other CO2 diffuser setup. Learn More -
Ista CO2 Indicator Solution Planted Aquarium£4.49Out of stockJust 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 -
Ista CO2 Indicator - All Angle View Planted Aquarium£6.99Allow you to monitor the CO2 level in your tank from any angle.
With smart design to prevent any chance of spill of the indicator solution.
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Ista CO2 Diffuser Waterplant Planted Aquarium£4.99Ista CO2 diffusers provide a simple way to supply CO2 to your planted aquarium.
User-friendly shape and high transparency.
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Ista CO2 Bubble Counter 2 In 1 Planted Aquarium£7.992 In 1 Function - CO2 bubble counter and check valve
With CO2 pipe fasten screw nuts to prevent accidental detachment of CO2 pipe
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Ista Professional CO2 System£149.99The 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.
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Ista 2 in 1 CO2 Diffuser With Bubble CounterAs low as £7.99The 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.
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Ista UFO CO2 Ceramic DiffuserAs low as £5.99The 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.
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Ista Vertical CO2 Diffuser Chamber£6.49The 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.
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