I now have one albino cory, one blue paradise, and one not yet adult male guppy in my tank. I am trying to think of what else I can add to the tank in a few weeks after I graduate from college and set the 10 gallon back up at home. I also have some live plants right now. Anyway, I am trying to think of various possibilities of what I can add next. I won't be getting a bigger tank most likely until after graduate school which is about 3 years away (transportation would prob. be too much work). I don't know if I should go with a few male guppies only, female guppies (possible fry problems?), a couple more cory cats or what. I don't think my tank is really big enough for a school of many things and I am unaware of any other fish that are happy being stand-alone fish. Any suggestions? I don't know how much room is needed for something exotic like a goby or loach (if those even stay small enough) to utilize the newer sand I have in the tank. I obviously can't have Cichilds, but I do like how they use the sand and play in it and how my cory actually sifts through it.