Marina Breeding tank Large. This is perfect for my larger African cichlids. It has a pickup tube that works with air to push water into the box. it has two separators to make three separate spaces for sick or pregnant fish. It comes with levelers so it will fit any tank. It has a locking lid with removeable locks but these can be lost so be careful. You can also use this for acclimatizing fish as well. It hangs on the outside of your tank.