Very social--much more fun to watch once they have friends--they are such cute little buggers. They particularly like to hang out with corys that are the same species as themselves, so more albinos will make a happier albino cory. My bronze corys are different sizes, but they still hang out together and play all the time!
thanks everyone. They told me at PetSmart to wait about 2 or 3 weeks before I get more fish. I get paid next Friday, so they'll get some decor for their sparce domicile and they'll get a few more friends. I was wondering what to get, so now I know I'll get a few more catfish...maybe 2 of each so I have 3 of each for now...I don't want to overload the tank with catfish.
I was also thinking of getting a bunch of neon tetras--like 5 or 6.
...In other words, cory cats are constantly swallowing air and then farting it out. Watch them as they swim down from the top and you'll see the little fart bubbles rising.