Do you want the best filter for shrimps and BABY FISH - You found it!!

Sponge filters provide both mechanical and biological filtrationProvides the ideal location for bio-filtration colonization.Does not trap fish fry. Suitable filter when breeding and spawning Discus, Dwarf cichlids, guppies, and killifish.Max Tank Size: 20 Gallons, 6.5"L x 2.4"W x 9.5" H