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Filter material for all external filters, designed to mechanically clean your aquarium. These filter rings help filter out large particles, increase water quality and ensure an even flow of water.
Tetra EasyCrystal Filter Accessory Filter Pack C 250/300 with activated carbon - suitable for use with the EasyCrystal Filter 250 and the EasyCrystal FilterBox 300.
Filter media for Tetra EX and EX Plus external filters. For clean aquarium water that's appropriate for both fish and plants.
Sera Siporax® is a self-cleaning biological filter material for all internal, external and trickle filter systems, and for garden pond filters.