Hello, if your frog is a year old he is pretty much an adult and when they get to this stage they really don't eat as often. You could probably get away with feeding him a few at the start of the week and a few in the middle. You need to get vitamins, half the stuff petsmart tells you is very poor advice and you are probably better to do the opposite if what you tell you. He needs calcium and d3 and multivitamins, rep-cal is a pretty good brand. If you go to the top of the pacman frog part of the forum I believe there is a really good feeding and dusting schedule there. For the heating if you can get away with just that light you can go to walmart or a home depot and buy a dimmer for like $8 and you can adjust your temp that. If you don't see any other signs of illness I worry to much about his eating he is probably just getting older and doesn't need to eat as often.