for a 10 gallon tank. Be sure that the tank is CYCLED FIRST!!!!!!! if you dont know what that is then send me a message and I will explain. Easy fish that get along well and are hardy would be guppys, platys, danios, a betta (MAYBE) ghost shirmp, cherry shrimp, maybe cherry barbs, neon tetras, apple snail, Rule of thumb is 1 inch per gallon. If you have any more questions, feel free to send me a message