i have had problems with this too, but mine is a lil differnt, i have tried 4 different types of crumbles and floating pellets for my chiclids and they dont seem to like it. i have tried hikari <sp gold, the red and green bag, and i have tried chilid attack, and i have wardens slow sinking crumbles. it seems like mine are picky and only like the wardens. i have tried to get them to eat the hikari floating stuff and they ont like it at all... but they like blood worms a lot.. LOL