I am thinking about getting a Climbing Perch,I know that i should look up some info on the website,but i would like to hear from somebody who owns or owned 1 of these guys.I would like to learn about thier aggressivness(if any)how big they get,what they eat and most important are they interesting.Any help is appreciated.Oh by the way it will be living in a 20 long for a few monthes is this ok???Thanks guys!!!