try feeding at night, that way the other fish might take longer to find it. with feeding your ADF's they are several ways or doing it, one way, and the one i use is to remove them using a net every 2-3 days and place them into a cup/jug/whatever and using tweezers, wiggle bloodworms infront of they, they will some snap them up (the frogs need live or frozen foods, not just pellets, you can do the same with the pellets, but try to varie the froggies diet) the second way is to place a small plastic/glass tray/plate on the substrate every few days, in the exact smae place after lights out and your frogs will smell the food and come to investage. leaving it in the sam eplace each time, ensures the frogs have more sucess in finding it. other ways are to get hold of the food with tweezers, them put your arm into the tank and wiggle the food infront of the frogs, like method one but involves getting your hands wet. they may be more ways, but they are the best ones i know.back to feeding your kuhil, try lots of different foods, at night. if your using sand, try pushing the food under the sand so other fish cant reach it, but the kuhils will dig for it.