depends on the typeof fish you have ... if its a very aggressive fish such as an Oscar and you put a smaller fish in there with it chances are its gonna be ate
You can put Bettas, and tetras together. A clown loach will go with anything you put in the tank. Just make sure you have a big enough tank. Guppies multiply quickly. So if you want to put in more fish you will have to be careful the other fish don't eat the baby guppies. Don't put Oscars in with other fish. A fish will eat another fish if it can get it in it's mouth.
Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.