Hello! New to the hobby and BRAND NEW to corals...so I started with a nice colony of zoanthids from Manhattan Aquariums. I have had them 2 days and noticed this morning that some of the polyps are very reluctant to open and appear to be whitening on the outside. Several questions come to mind: Is this what bleaching looks like? Is it the lights causing the bleaching? My other params are fairly in line: Ammonia 0, Nitrite 0, Nitrate 10, Calcium 400, dKH 9, pH 8.1 I took 2 photos - one with my blue lights on and one without, as I think the issue is a bit easier to photograph without blue light on. My light is the TaoTronics TT-AL12 full spectrum programmable. I am realizing I bought way more light than I needed. I am running blues at 20% and whites at 1%, about 10 in off the water's surface. Any insight would be greatly appreciated....thanks!