It is a 90 gallon and all parameters are good. Added a yellow Fiji leather recently and it seems to be OK. Only thing that concerns me is my lighting. I currently have a 6 bulb t5ho setup that I believe the bulbs are aging in. When u say bleaching though I assume too much light. I also recently switched from instant ocean to Kent marine salt. It started this before the switch though. The reason I have allowed my bulbs to age a little is because I will be replacing them with two ai sol blue fixtures after Christmas. I believe the bulbs are 6 or 7 months old now. Do you think this is the problem? Hoping not because I am sure the switch to led
Will cause enough stress in itself.