So far, Green birdsnest seems to be really hardy. fell and broke about 3 times now and all the pieces survived. It would sit under the rocks with little to no light and still have half of it with plenty of PE. The only thing is that now we end up with way too many of them.
have a pinks birdsnests that was 80% stung on a torch coral and bounced back quickly under low/medium light. Monti caps have been real hardy for me as well
ive killed everything except a hydnophora, all tho my purple b-nest is rock solid dont think i could kill that thing if i tried, sunset frags usualy go for about $30-40 Cmartin