4 PCS Bio Sponge Filter Breeding Fry Shrimp Nano Fish Tank Aquarium 20Gal Dog Complete Systems Sizes correspond to the Vari-Kennel

Sizes correspond to the Vari-Kennel models as follows:

Provides house of entertainment for pets and their owners

The den is Hygienic

Turn on water supply and turn on faucet to check for leaks

eco-friendly alternative to electric water chillers

4 PCS Bio Sponge Filter Breeding Fry Shrimp Nano Fish Tank Aquarium 20Gal Dog Complete Systems Sizes correspond to the Vari-KennelFeatures: Sponge filters provide both mechanical and biological filtration. Simply install an airline into the unit and provide both aeration and filtration for your fish. Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle. In addition, the sponge traps larger waste particles mechanically cleaning the water without trapping baby fish. They are useful for as breeding filter or as secondary filter. Or