I have a nice sized Jason Fox Monty Plate that I picked up from a friend. The color isn’t what it was a week ago when I got it. It is more pale now. I think it is growing as I see white around the border. I run an 8 bulb 36” ATI about 12” over the water. It’s a 48” 90 gallon tank and the Monty is about 2” off the bottom. I am running core 7 other methods ph 7.9-8.1 ALK 8.3 Calcium 450 .02 Po4 2.5-5 No3. I also run carbon and gfo. Any advice? I wouldn’t think it is bleaching at the bottom of the tank but who knows. I also am having a similar issue with birds nest but I suspect my emerald crabs started eating it. They have been banished but I think the damage has been done. Any help would be appreciated.