Suitable for all types of filter. Very effective!
Size: 45x25cm, easy to cut in the right size and shape.
Absorb Nitrites (NO2) and nitrates (NO3) using natural aerobic bacteria.
Nitrites are toxic to fish and nitrates promote algae growth.
For any heavy, fragile or bulky object order, delivery will be made by us.
Small packages will be sent by post.
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