Thanks for the concern. My water is perfect the tank has been cycled and the pH is at 6.5 the temp is roughly 75-78. I have a few snails that take of the algae but I also added algae fix which I just read may be poisonous to rays?! My substrate is tahitian moon sand. All my lights are off to help prevent stress. Any he may be going into the "death curl" I'm not sure how to tell though.