I got my baby (Frankenstein - 2") 10 days ago and it took him 5 days before he started to eat. When he started eating it was because I dropped a pinch of frozen bloodworm in the back of the tank where he hid out after the main bloodworm/frozen brine/flake feeding up front. He snapped up a piece of bloodworm and that was like opening the floodgates. Now he sneaks up and gets a few pieces of flake every feeding and I drop in some of the surface floating hikari pellets, the really tiny ones. He'll usually chomp one of those, carry it around with his mouth all bulgy, spitting it out and re-chomping it several times. He has also eaten small pieces of frozen krill and has carried around a stalk from a live plant that got uprooted for a few minutes thinking it was food. I'm planning to order the hikari sticks when he gets bigger and use them as his main food. For now I consider myself lucky that he's not discerning and will eat whatever I put in there. He's getting braver about getting out and eating when all the other fish are up top too, which is really cool.