i was out of the country for 9 days got back Monday and i used Ocean Nutrition prime reef flakes in my auto feeders when i got back it was empty i set it to feed twice a day with 2 turns each feeding i guess i didn't put enough but all my fish were alive and healthy i did however have 1 fish that jumped out of a small hole i made for the auto feeder 1 in a million shot lol
Those should all take to flake or pellet food. If any of them are stubborn mix some dry with the frozen food and over a few weeks make it more dry than frozen