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Diffusing CO2 into your planted aquarium is considered as essential for many enthusiasts today. We offer a huge range of diffusers regardless of your tank size. It's important to make sure you choose a diffuser that is sufficiently large enough to deal with your proposed CO2 flow rate. Pick a diffuser which is too small and the bubbles will be larger than desired and shoot to the top of your tank.

Colombo 3 in 1 CO2 Diffuser - Large

Colombo 3 in 1 CO2 Diffuser - Large

£9.99
Colombo 3 in 1 CO2 Diffuser - Medium

Colombo 3 in 1 CO2 Diffuser - Medium

£9.99
New
JBL Inline CO2 Diffuser - 16/22mm

JBL Inline CO2 Diffuser - 16/22mm

£32.99
New
Scaper CO2 Diffuser - 25cm

Scaper CO2 Diffuser - 25cm

£20.99
New
Scaper CO2 Diffuser - 35cm

Scaper CO2 Diffuser - 35cm

£22.99
New
Scaper CO2 Diffuser - 40cm

Scaper CO2 Diffuser - 40cm

£23.99
Sale
UP CO2 Inline Atomiser 12/16mm
Sale
UP CO2 Inline Atomiser 12/16mm

UP CO2 Inline Atomiser 12/16mm

£26.99£12.9952% off