You an get a lot of platys About, six make sure you get 3 Males and 3 Females Cause the Male's, Will fight over the Female. You can also Get Some Mollies, Tri color shark's They grow to 4-8 inches you need 3 or more cause they like groups, Right now in my 10 Gallon fish tank i have 3 Platy fish 2 females and 1 male platy fish are nice and peaceful, but when you feed em don't feed em a lot they'll stay at top for while cause there going to beg they just wanna eat. Also Goldfish if you take care of em they can live long, They don't need heater's But if you have one keep it in there cause the goldfish wont care, Here are some types of fish
*Black moor goldfish
*Goldfish
*Red Platy
*Orange platy
*Tri color sharks
*Guppies
*Mollies
