My friend gave me a rhizotrochus and said he couldn’t feed it properly and care for it anymore. It’s not in the best condition. Skeleton receding and tentacles pop out but not like in pics I’ve seen. Does this thing need to eat constantly? He gave me because I have some dendrophyllia colonies that are doing well and suggested the care is the same. Not much info online but supposedly it’s a black market coral illegal for import under CITES. Pics and care from keepers welcomed.