i know this will sound ridiculous at first, but i have a 55 gallon with one 4" long oscar. i went fishing the other day for bluegill as a diet for the fish in my pond, (green sunfish and rock bass) and i kept catching really tiny maybe 3"long largemouths. can i put one in with the oscar until he grows about 9-10" then move him to the pond or release him? the one thing i would be worried about is the temp of the tank, but i know that largies live down in florida with oscars so i have no clue. the tank is at 77. i have 2 75 gallon HOB filters and the oscar is also in there as a growout until he is about 10". thoughts???