If u dident know i am raising two 1 inch reddevils in a 15 gallon.I decided to give one up and keep one in the 15 gallon for 2 months.I am upgrading to a 90 gallon at the end of the year.I dont want to upgrade to quick for such a small fish that could die,by some freak accident so this is the question.What size tank could i keep the reddevil in for about 8 months and not stunt it.I was thinking about a 55 or something by what do u guys think.On my 15 gallon i have a ac 200(50) gallon filter with a ac 10 powerhead.any helps is apreciated.and please tell me something that could help me not some smack about how i take care of fish.