Ok. I have placed the optic fibre at a different location, but now the polyps are not extending as much as last time. However, I do not observe any tissue lost either.
I bought two frags of pocci and place it at medium and low height in my tank. I observe some loss in tissue at the bottom, but polyps are extending, however, no extending as much as they were in the original tank with a calcium reactor.
My parameters: CA 418, KH 7.4, MG 1350, Saliinity 1.024-5.
Other SPSs are growing normally.