Hi everyone,
I recently noticed multiple small dark purple/black dots on the underside of my space invader chalice. The spots seem embedded within the tissue along the ridges/septa and do not obviously move.
I attached several pictures after putting it out of the tank. It is attached to a single stone.
Are these normal pigment structures for a Space Invader Chalice?
Or would you recommend dipping? If yes, what shoud I use?
Tank parameters are stable and other corals look fine.
Thanks a lot for any help!

I recently noticed multiple small dark purple/black dots on the underside of my space invader chalice. The spots seem embedded within the tissue along the ridges/septa and do not obviously move.
I attached several pictures after putting it out of the tank. It is attached to a single stone.
Are these normal pigment structures for a Space Invader Chalice?
Or would you recommend dipping? If yes, what shoud I use?
Tank parameters are stable and other corals look fine.
Thanks a lot for any help!

