20 high tank. A local Petco has been getting in some really nice white and black platys. I was wondering if I had room in my stocking to add one. Right now I have: 1 female betta 1 platy 3 guppies 1 mosquitofish 6 cherry barbs I can move the mosquitofish back to my pond. Fry are no issue. Or is there some other type of fish I can add if not another platy? Thanks!