i have a 20 gallon long in my garage and have the urge to set it up as a 3rd fish tank. i want to get some african dwarf frogs and glass catfish (right fish or sp?) or other cool looking fish. i am all for the frogs so they come in first priority. i dont want any mollies, goldfish or guppies because i already have em. i just want sum cool fish that would do well with the frogs, possibly schooling fish? also what would i do for algea and crap managment? cories, pleco, cae what?