i just started a 55 gallon native tank. i caught 2 small red breast sunnies and i placed them in there a week ago. they are adapting well, very active and eating flake already. i feed them earthworm, bloodworm, pieces of market shrimp and cichlid flake. only thing is that there color is very dull in the tank. lighting is ecolux 4100k 32w, ive never been wild about the way it has made any of my fish look. what do u guys use on your north america native tanks?