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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. 

Filters

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Ista CO2 Cylinders - Side Attaching

£0.00 - £0.00
£0.00
£59.99 - £94.99
£59.99 - £94.99
£59.99
Out of stock

Ista’s CO2 Cylinders are made from quality aluminum to make them incredibly hardwearing and long lasting. The bottles are prefilled but also refill...

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£0.00 - £0.00
£0.00
£59.99 - £94.99
£59.99 - £94.99
£59.99
Sold out

Ista Stainless Steel CO2 Check Valve

£0.00 - £0.00
£0.00
£3.99
£3.99 - £3.99
£3.99
Out of stock

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 tra...

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£0.00 - £0.00
£0.00
£3.99
£3.99 - £3.99
£3.99
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Ista Mini CO2 System for Planted Aquarium

£0.00 - £0.00
£0.00
£44.99 - £49.99
£44.99 - £49.99
£44.99
Out of stock

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 compl...

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£0.00 - £0.00
£0.00
£44.99 - £49.99
£44.99 - £49.99
£44.99
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Ista Twin Gauge CO2 Regulator & Solenoid (Side Attaching)

£0.00 - £0.00
£0.00
£109.99
£109.99 - £109.99
£109.99
Out of stock

The Ista premium pack is a CO2 controller with included regulator, solenoid valve and bubble counter. The regulator has a hand air-tighten design m...

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£0.00 - £0.00
£0.00
£109.99
£109.99 - £109.99
£109.99
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Sold out

Ista Waterplant Disposable CO2 Can x3 Pack

£0.00 - £0.00
£0.00
£19.95
£19.95 - £19.95
£19.95
Out of stock

Box of 3 x disposable CO2 canister replacements for the Ista or any other CO2 diffuser setup.Set upVertically place your diffuser in to the tank to...

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£0.00 - £0.00
£0.00
£19.95
£19.95 - £19.95
£19.95
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Sold out

Ista Replacement CO2 Pressurised Cartridge for Professional System 45g / 88g

£0.00 - £0.00
£0.00
£14.99 - £17.99
£14.99 - £17.99
£14.99
Out of stock

Replacement Ista disposable CO2 cartridges for the Ista professional CO2 system.Available with both 45g and 88g CO2 cartridges. Please select the o...

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£0.00 - £0.00
£0.00
£14.99 - £17.99
£14.99 - £17.99
£14.99
Sold out
Sold out

Ista Professional CO2 System

£0.00 - £0.00
£0.00
£149.99
£149.99 - £149.99
£149.99
Out of stock

The Ista Aluminium Cylinder System is an ideal starter CO2 set for planted aquariums.Features:Ista’s CO2 cylinders safety standards are approved by...

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£0.00 - £0.00
£0.00
£149.99
£149.99 - £149.99
£149.99
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Ista UFO CO2 Ceramic Diffuser

£0.00 - £0.00
£0.00
£5.99 - £7.99
£5.99 - £7.99
£5.99
Out of stock

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 giv...

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£0.00 - £0.00
£0.00
£5.99 - £7.99
£5.99 - £7.99
£5.99
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Ista Disposable CO2 Cylinder/95g (3pcs) - I-519

£0.00 - £0.00
£0.00
£39.99
£39.99 - £39.99
£39.99
Out of stock

Disposable CO2 Cylinder 95g Cannister Pressurised Liquid CO2 Planted Aquarium (3 Pack)  Contains 95g pressurized liquid CO2. Quality and safety as...

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£0.00 - £0.00
£0.00
£39.99
£39.99 - £39.99
£39.99
Sold out
Sold out

Ista Waterplant CO2 Diffuser Set

£0.00 - £0.00
£0.00
£16.49
£16.49 - £16.49
£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 f...

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£0.00 - £0.00
£0.00
£16.49
£16.49 - £16.49
£16.49
Sold out
Sold out

Twin Gauge CO2 Controller Vertical (Face-Up) CO2 Pressure Indicator

£0.00 - £0.00
£0.00
£94.99
£94.99 - £94.99
£94.99
Out of stock

Twin Gauge CO2 Controller Vertical (Face-Up) CO2 Pressure IndicatorIntroducing our Twin Gauge CO2 Controller Vertical (Face-Up), the ultimate solut...

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£0.00 - £0.00
£0.00
£94.99
£94.99 - £94.99
£94.99
Sold out
Sold out

Ista Disposable CO2 Cylinder/95g (1pc) - I-518

£0.00 - £0.00
£0.00
£19.99
£19.99 - £19.99
£19.99
Out of stock

Disposable CO2 Cylinder 95g Cannister Pressurised Liquid CO2 Planted Aquarium  Contains 95g pressurized liquid CO2. Quality and safety assured. Di...

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£0.00 - £0.00
£0.00
£19.99
£19.99 - £19.99
£19.99
Sold out
Sold out

Ista Single Gauge Pressure Reduced CO2 Controller - I-643

£0.00 - £0.00
£0.00
£59.99
£59.99 - £59.99
£59.99
Out of stock

Ista Single Gauge Pressure Reduced CO2 Controller    Introducing our Single Gauge Pressure Reduced CO2 Controller, the ultimate solution for preci...

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£0.00 - £0.00
£0.00
£59.99
£59.99 - £59.99
£59.99
Sold out