I currently have 4 guppies, 1 pleco, and 1 of these (don't know the name). These are all in my 20 gallon tank.

And I think one is a female. That's what it said on the reciept. I know, I'm a bad fish keeper person because I don't know if it is male or female, I get them because they are pretty

Basicly with Tropicals its one ich of fish per gal. So add up your iches of fish hun and that will tell you if you can have more

Thank you! I was already thinking that I had gone over my limit of fish.