Go with one, its plenty fun to watch, my 5" is in my 90g with some bichirs and silver dollars. If you want more than one get another tank ~55+ gallons..
as soon as i get some cash i am getting atleast one...i may try and trade some fish as i need to cut back and just focus on the oddball toothy kinds of fishes like i have been tring to do for a year now...quitting smoking and drinking is easier then switching to a lighter collection...
