Geeze... you should know how to write Acanthastrea Lordhowensis, for crying out loud! LOL!!! Just kidding!!! Just make sure there's plenty of distance between them and other corals (sweeper tentacles). They have mouths, so they have to be fed mysis, chopped table shrimp, chopped fish, etc...
I probably overstated it. I should have said that while most of their energy comes from the symbiotic zooxanthellae algae that lives inside of them by feeding the acan the sugars they produce as a by-product of photosynthesis, they might enjoy a light snack of mysis, chopped shrimp, chopped fish, etc... since they have a mouth. It's there for a reason, just like the sweeper tentacles. My bad...
I've seen some gorgeous lord acans. I'll be adding some of those soon...
Usually extend after lights out, as this is when LPS normally feed.
It's either a sign of stress... or it's taking a poop.
They poop. Their mouth is also their anus. Once food has digested, they pucker up and expel the waste through the same opening. It's usually a white, mat-like chunk of poop that floats around the tank for a while. It took me awhile to realize what those white things were in my tank, until I saw it coming from it's source.
