i have 3 dwarf puffers and its my first time having this kind of fish, but i was told that they eat fish flakes so i got them the flakes. but i try feeding them it and they just wontt eat it, like they act like its not even there. and i crunch it up so its small enough to eat and ive tried keeping it at a larger size but they wont eat it. so im jw what to do, like is it because their new to the tank? because they seem at home to me so yeah. thankyouu!