I currently have 3 baby Indo's, and I feed them black worms, which all 3 LOVE, and blood worms, it seems that only two will eat blood worms, I usually will throw a pinch or two of the black worms into the tank, and they all get eaten, then with the blood worms, I just hold it in the tank, and they eat from my fingers, it's pretty neat! I find doing it that way it's easier to not pollute the water.
Best of luck!!