sera guide - Shrimps and crayfish

16 A filter fulfills two important tasks in a cray- fish or shrimp aquarium. On the one hand, it purifies the water, on the other hand it creates a constant water flow that imitates a brook. For example, fan shrimps can take up their food only from a current. sera internal filters for small aquariums – sera fil 60 or sera fil 120 – are ideal for the effective mechanical and biological filtration. In con- nection with the biofilter medium sera siporax mini, they provide biologically clean water. The sera fil internal aquarium filters can be extended with additional cartridges. Filter The surface of one liter (one US quart) sera siporax mini has almost as much biological break- down power as 34 liters (9 US gal.) of ceramic filter material Technical equipment 16 sera siporax mini filter medium filter cartridge sera super carbon active filter carbon filter cartridge filter sponge end cartridge