Ocean Free Hydra 40 Internal Filter size-160g Adjust iron levels as necessary

Adjust iron levels as necessary

Easily Digestible Protein

and contains lean proteins and natural fibres to minimise your cats hunger between meals making it an ideal choice for cats who are less active

backed by German engineering

Dark green

Ocean Free Hydra 40 Internal Filter size-160g Adjust iron levels as necessaryThe Ocean Free Hydra 40 internal filter uses Hydro Pure technology to ensure your tank has stable water quality while being environmentally friendly. By filtering through the Hydras 3 step process, the Hydra will turn your ammonia, nitrate, nitrite and phosphate into biologically clean water. Suitable for tanks 200 500L.