I feed mine thawed pieces of smelt that I cut with scissors and he eats them from my fingertips. As soon as I enter the room he is at the front of the tank with mouth open. It is best to get them off of live as soon as you can or you will go broke. Mine is currently 7" and was about 4 when I got him. He also will take food off the bottom of the tank too which is not common with giga.
