The preferred freshwater sharks are rainbow sharks, bala sharks, and crimson-tail sharks. Many of these fish have Obviously Daring colours, but check out the Glofish Sharks If you would like a fish that actually shines! Several tropical fish species are very social, plus they are in groups during the wild. https://fishpondmaintenance.blogspot.com/2023/11/how-to-take-care-of-your-flowerhorn-fish.html