Good morning. I have this Montipora that I got about 2 weeks ago. I have noticed that the edges started to bleach out. I have been reading conflicting reports online regarding the cause of this. Can anyone help me? My SG is 1.025, pH 7.8, dKH 8, NH3, NO3, PO4 all 0. This Monti is on the lower third of the tank. I have 4 T5HO bulbs, 2 ATI Aquablue Plus, 1 ATI Purple Plus and 1 Coralife Actinic. Maxspect Gyre on pulse mode at 20%. Thanks.