• ✔FISH BREEDING BOX MEASURE&QUALITY: Fish tank is made of acrylic. Cover to prevent fish jumping out or in. There is a hole in the lid. It can let your fish have fresh air. Hatchery breeding for baby--breeding for small baby fish,such as bettas. Length*Width*Height--8X4X4In Include package:1*fish breeder box.
  • ✔PREVENT THE FISH OUT OF ISOLATION: The unique floating design, can move anywhere, not sink, double combination. It does not occupy space. There are cracks on both sides, to ensure the flow of water within the tank and isolation box.
  • ✔SUCTION CUPS FOR AQUARIUM BOX: The suction cup holds firmly to the inside of the tank, preventing the breeding box from flowing with the water. Anywhere convenient fixed in the tank. The breeding box can be secured to the aquarium wall with the suction cups. The grating in the bottom prevents soiling of the box by food residues and excrement.
  • ✔MULTIFUNCTION ISOLATION BOX: Exquisite workmanship, transparency and compact. Removable center divider allows two fish to be safely isolated. Space saving design that hangs on the inside of the aquarium. Please remove the protection film before use.
  • ✔100%CUSTOMER SERVICE SATISFACTION: High quality Aquarium breeder box hatchery is popular with fish. We promise 100% return within one month. If you have any questions, you can contact us. We will reply you within 12 hours.

This is a great way to breed more molly's and separate them. So, they don't get eaten. Love my fish tank and all the accessories! Thank you!