Hi, i am pretty new to the hobby and my tank is just over 3 months old about 2 weeks ago i bought this toadstool leather, and had it in the middle third with some flow, i cant tell whether it is bleaching due to high lighting or just shedding which i know they can do, can anyone clarify my situation? I have put it on the sand bed but still has good flow just incase it is bleaching. You can see where it used to be and i run my lights on a more blue spectrum.