I concur. Keep them at 60's to mid 70's and feed them every other day. If you keep them colder, they may live, and stay small, but they won't eat. If they don't eat, they're not as nutritious. If you find that, at the cooler temp, they are not eating, then for short periods after you feed them- place them in a warmer environment. Don't over feed them, and after they've eaten cool them off again.