The Hagen Marina Multi Breeder comes complete with all the accessories for an all in one self-contained live-bearer breeding tank live bearer trap a betta fish enclosure as well as being ideal for segregating sick or aggressive fish. - Multi-purpose chamber attaches easily to side of aquarium. - Floating safety chamber for pregnant livebearers. - Bottom compartment safely collects and isolates falling fry. - Ideal isolation chamber for sick or weak fish. - 8\" L x 4\" W x 4.25\" H - 20.32 cm L x 10.16 cm W x 10.79 cm H