RBTA Help please

[kyl]

My RBTA is host to both a porcelain crab and anemone crab (the clowns got evicted with the fallow period for crypto and couldn't get their spot back), it can extend to about 8-9" across when fully inflated. That seems to be a happy size for it, but prior to that when smaller and before the clowns became hosted, the RBTA and porcelain crab were not a good mix.