Ok if you really think that it is neccesary to have a 29 gallon tank for one pair of convicts you are an idiot i have 2 pair in a ten gallon with the males being 3 inches and females 2 they get along fine they just don't grow to full size but i like that they won't grow to full size they look alot cooler to me and you can have other fish in the tank but just not while they have fry or are protecting there young... I want to know what yall think about this i think that it is fine i also have a 80 gallon salt water tank so its not like i am a newbie.