Hey. My tank right now is a 10 gal with two younger fancy male guppies and four silver tip tetras. The tetras have been terrorizing the guppies and frequently dart all over the place. I am trying to get rid of the tetras now, as guppies would be easier to take care of and are more peaceful but on a college campus, it's hard to find a spot for them. The only two options I know of right now are a 10 gallon with about 5 goldfish which sounds like a bad idea, or my friend's 55 gallon cichild tank that has a mixed variety of cichlids in it. I know he mixed the geographic areas although some say you can't do that and he doesn't have problems. I only know a few of the specific fish he has, but he has about 20 in there right now. He has 2 parrot cichlids, a convict cichlid, jewel cichlid, just to name a few... Is there any possibility that these tetras will not be killed in this tank? They would be in a group of 4 and they are extremely fast. The tank has adequate hiding with silk plants and rock formations, but I don't know whether that matters with the high volume of fish present anyway. I guess it would be hard to hide from 20 other fish anyway. What are your thoughts? Do places like Walmart and Pet Supplies Plus trade fish if I wanted to give these in trade for a guppy or two? Thanks...