Sunsun External Hang-On Breeder Box

The Sunsun External Hang-On Breeder Box hangs on the outside of the aquarium rim and draws water from the main tank through a siphon-style inlet, circulating it through the breeder compartment before returning it to the tank. This keeps fry in the same conditioned water as the parent tank without exposing them to filter intakes or adult fish. The large capacity external design provides more space than internal breeder boxes, reducing stress on fry and brooding females. Adjustable inlet height allows use on tanks with varying water levels. A fine mesh divider separates newborn fry from their mother immediately after birth, suitable for livebearers and small egg-layer broods.