I have a ORA Green Digi that the polyps are still out on some, and usually has a nice bright white skin with the fluorescent green polyps. The white has become brown, no algae on it I can see and the growth has become significantly slower. I have a ORA German Blue about 3" from it that grows like a weed and an ORA Birds of Paradise about 2" above and 2" over that grows crazy as well. I actually had a frag of this off the colony that turned brown and the polyps receded and never returned. Anyone ever see this before? Will post pics shortly.
pH: 7.7 - 8.1
Any thoughts would be great!