Acans receding - looking for suggestions on possible causes

[Zoaelite]

Originally Posted by gregzz4

Because my corals were starting to bleach due to a lack of zooxanthellae, I took a suggestion and cut about 8 hours of T5s out of the day, and currently am running 12 hours of blue plus, and 9 hours of 14k coral lite 2 next gen

Could you please clarify your lighting & the schedule its on? When you say you cut 8 hours of T5/ day do you mean you were running your lights @ 20h/day?