i didn't know that your bubble in such bad state. if the bone has any meat on it, it's possible to save it, but will need time and affort. sorry, can't spell. my bubble coral is just bounsing back too. he hates cyclopes, though. feed it what crown royal recomended. mysis shrimp is probably the cheapest fish food. some stuff u can get at the store where u shop, just cut it up nicely in very tiny pieces. do water changes, make sure all levels are good. i also was adding vitamin C, but gradualy rased it higher than what was recomended. i also read that adding alittle bit of iodine every day would help, but less than recomended. the best time to try to feed your bubble is very late at night or early in the morning. regardless of the respond, just shut off your power heads and put the food on him and give him a chance to eat. often if the coral is very sick, he will need alot more time to take food than normaly. if he woun't take the food at all, then still do all other stuff while trying to feed the bubble every day. i also did iodine deeps in spesial solution for deeping corals. works great. the bubble will need your time a money, so u see what u want to do. i personaly hate loosing anything and love to experiment and see what works and what doesn't in spesific situations.