Designed and tested by Blackwater Aquatics, aka BWAquatics. This betta crib will help your betta fish (not beta fish) feel at home. When they're building their little bubble nest, you know they are happy. They'll dart into here when they need some shade or need to feel safe. The males will build a bubblenest and entice the female into his home for breeding. This has been designed to keep the bubbles from disappearing too quickly so your little boy doesn't have to work too hard. It has also been designed to help him catch his babies.