This is my first time posting here, but I'm having a problem with my mushrooms. First off I have a 75G bowfront tank with 260watt PC's and a sump underneath it. I just picked up a nice piece of live rock with about 20 light brown mushrooms on it. They started off nice and opened up very well. But over time they started to shrink and not open up as much. Now they are turning white actually clear!! They seem okay but they are clear. I test and check my water parameters regularly and everything is good. My light run for about 8 to 10 hrs a day. Any help that can be provided would be great. Thanks.