I have used sea chem reef dip on a lps bubble that toppled over and fell one nite from a snail and it recovered fine and onle about one third of it died and it has been doing great since, that was 8 mo. ago. I used it on a monipora dig. about 6 wks ago that got knocked over and it was receding from the bottom up and it seems to have stopped. I dipped twice a day for two days each time per instructions.