So I’ve had a deresa in my Nuvo 20 fusion for about a year now and it has probably grown 2-3” in that time. However about 7 months ago it bleached fairly badly. It has recovered a lot of its color, however the left side is still white and he has bleached patches on him. Other than that he is super healthy. Fully opens, reacts to light, new shell growth every month. Only thing is the color won’t fully come back. It is about 18” under an AI hydra 26 hd light. None of the corals or rock flower nems in the tank are bleached and everything is growing wonderfully.
Any ideas why he hasn’t fully gotten his color back?
20 Gallon SPS reef
29 Gallon FW "fat catfish" tank
20 Gallon Long Dart Frogs "Zig" and "Zag"