Hey ppls I am looking forward o buyin a new fish for the first time in months but I don't know what kind to get I want one that's fairl placid and doesn't get too big no more than 6inches I currently have Bolivian rams African butterflys clown loaches and cribensis I like the blue acaras are they suitable for the kind of fish a currently have I'm running a 3ft x 2ft x 2ft looking for a reall colourful adition for my collection. Thank ppls