OK, I've kept RBTAs for a decade and never really fed them. However, immediately after the last frag trade, my RBTAs (but not GBTAs) have started to bleach. I did a bunch of water changes. I don't know if I put something in the tank that they hate, or there is chemical warfare going on in there. Anyway, I finally removed the surviving RBTA to my holding tank (about 75 gallons in a 100g tank, with some fish, live rock and some zoos under dual 150W MH lights and skimmer) in case it was warfare. They look bad. One is tiny and probably won't make it. One is still reasonably sized, one is small. I don't know if they shrunk or are just splits. I've lost a few in the tank. So, since they are bleached, I'm thinking that I need to supplement them with food. I recall on this forum, some people said that feeding anemones is counter-productive as it requires a lot of energy for them to digest stuff and that photosynthesis and xoozanthelae is all they need. But since they seem to have dumped the xoos, I think I need to help them out. I have some silversides in the freezer that I bought, Lord knows when. I have some goo paste in little packets (unknown age). I'm sure the frozen silversides are probably frostbitten by now, not sure if that even matters, I have assorted freeze dried stuff (krill) and I do not have any unexpired vitamin stuff to soak this stuff in. Would feeding them help? I might try either the krill or the silversides. Or do you think it will harm them because they are not used to it and it will take energy from them. I find it hard to believe that eating wastes energy, unless they're eating celery.