a cute little beta fish bowl idea! cute but the bowl would definitely need to be bigger. betta fish tank decorations fish decoration ideas fish tank decoration ideas awesome fish aquarium decoration fish betta fish tank decorations . betta fish tank ideas. 25 gallon betta fish tank. betta-fish-tank-bowl-aquarium-ornaments-decoration-betta-. how to make a divided tank for betta fish. halloween-fish-tank-theme. betta fish tank.