Guppies

I got a new guppy today,he is a really pretty one,I have him in my tank with 2 female guppies, 3 pictus catfish,a striped raphael catfish and a upside down catfish and a female betta.I hope the catfish won't bother or eat the smaller fishes ,as they age but what I would really like is to get another tank (probably a 10 gallon) for the guppies and maybe the female betta could go with them to.

I think my parents are going to have a fit if I get any more tanks soon and I need to upgrade my cichlids to about a 40 -50 gallon by the fall but maybe by next month I could sneak in a 10.