Anyone else here ever have trouble with a trachyphyllia brain bleaching? For the past few months I have noticed some color loss not major but noticeable and the past 2 weeks it has been losing even more color and starting to bleach like the brains I see at DPA. I have had this guy since week 1 or 2 of being in the saltwater hobby and it has been great. It has been through a tank crash and 3 tanks since I have owned it and has always done well since they are such hardy animals.
I am a bit worried about the bleaching. I have read before that if they do not get enough light that the bleaching is a result of the zooxanthellae moving closer to the edge/skin. I have plenty of light so I do not believe this could be the problem. I have 2x pheonix 14k bulbs, 2 ati purple plus, 1 giesseman actinic+, 1 giesseman pure actinic. The other trachyphyllia brain I have seems to be doing well some days opens bigger then others but still colorful. They are both on the sand bed safe from other corals.
Everything else in my tank is doing well at the moment. I am going to test all my chemicals tomorrow. But it would be odd that only 1 is affected and nothing else.