Brian, are you hydrating your feed?
I'm currently feed training six or seven dozen RES in a 75 gallon insulated aquaculture tank with an aquarium heater set at 78 degrees. They have really taken to hydrated feed (homemade optimal crumbles). I am doing a 10 to 15% daily water changes while removing mostly waste with very little uneaten food. The aquarium heater really keeps the water temp at an optimal temperature even with the frequent water changes. After 4 weeks I would say that 75% to 80% that are readily eating feed, so far no morts. I did dip a glass full of daphnia out of the pond tonight and added them to the tank, the feed trained RES ignored them while those that aren't quite there yet gobbled them up.
