I always see chaeto in Dawn's tank. I think her tang(s) love them. Not sure which tang or all of them. I believe she's got a naso and a ocean (?) tang.
My yellow tang cleared out 1/2 of a 75g full of grape caulpera in like 3 hours.....OK it was less then a month...the pig
I know have a "mini fuge" in my fuge where it can grow, protected from his appetite
Lam (yes clear your PM box ) my fuge is putting out chaeto like crazy so i can just keep trimming it and dumping on the tank. sort of having the tang eat his own poop eew but that's just life!