I've had the pagoda cup for 6+ years and the yellow cup for 2+ years. About 3 months ago, the tissue started to recede and algae took its place. Any ides on how to save them?
Yes, the whole tank gets lots of flow. As you can see from the coraline algae growth on the areas where the tissue once was, the is a SLOW process. I have moved them around the tank, but I dont know what else to do. Water parameters are in check too. These are the only 2 corals not doing well in the tank, including all the sps. Really frustrating. Has anyone else experinced this?
I had a similar experience which I attributed to either a galaxia or frogspawn that was nearby and maybe stinging it. I moved mine to a more secluded spot and it recovered the polyps, although I have not seen tissue regrow over the dead spot. They may not be able to regenerate tissue over dead skeleton.
