allsps40
New member
I have had a grown a green leather from a very small frag and it has always been very healthy, never having any issues. Just recently it has developed a dead spot on it that is white and eating a hole threw it. tank is stable and healthy, mostly sps. 250w mh lighting, good flow 0 po4 and 5 no3. I also have a smaller green leather that is uneffected, all other coral in tank are doing very very well. Any ideas on what this is??