Okay, I have this empty 20 gl tank sitting around, and plan on putting some tropicals in there, with real plants, a bit gravel and so on. Now, after a walk through petsmart and another store, I dont know what to put in there. Everything
seems so small and colorless compared to a goldfish..

The only fish I saw so far that I would like are the fancy guppies, with their colorful tails and all!
Are they hard to keep (thats the laugh, compared to a goldfish anyway

), are they live bearers and as busy as those mollies?
Its gonna be a pleasure to put more than 2 fish into that 20 gl. You think I could actually keep 15 guppies in there? Its gonna be so strange....