I found a electric blue acara for about 3 dollars from a breeder and was wondering if he would be fine in my 55 gallon with 11 rainbows and 5 green fire tetras. I know the tank is pretty crowded at the moment but the 55 won't be the Acara's permanent home. I'm planning on setting up a 40 gallon breeder in about a month and after i setup the tank wait about a week for the tank to cycle (I have filter media in other tanks that would help speed the cycle up). Normally I would just wait to get the acara but they may not be available again in a month for such a low price.