I purchased a leather coral about 3 weeks and it was perfectly fine for about week. I noticed it closed up one day and it looked waxy, it was shedding. It did use a turkey blaster since I noticed it was 4-5 days later and nothing. It partially opened up 1 and then went back into shedding mode. It has been in this mode for over a week and now I noticed some white spots allover. I have other leather and they are fine and no white spots on them. Checked my parameters everything is ok but just did a 20% water change just in case and changed my carbon. I took some pics. I increased flow and is actually blowing the sand away from the coral.