Hydor Internal Filter Cartridge

The filter cartridge is cut to fit Hydor internal filters, easy to replace and available in different sizes. The cartridges are completely non-toxic for ornamental fish and invertebrates.

Moving water is absolutely necessary for most aquarium fish, as this is the only way to ensure effective filtration and gas exchange. A certain amount of current is also familiar to them from their habitat and not least serves their well-being. The aquarium should also always be filtered to ensure consistently good water quality.

Oliver Knott recommends:
With the filter cartridge for Hydor internal filters, you ensure active water circulation and oxygen supply in the aquarium!