OK, hey everyone... I think I've got a problem
basic parameters are right where I want them, the tank is really coming along... and everything is healthy and growing (various LPS
and soft corals)...
But (there's always a but...) my cup mushrooms are starting to get a little whitening right along the fringe... they are otherwise spreading nicely and doing very well (I think). They DO however sit right in the shadow of a spreading torch coral... I'd say they're getting about medium to low(ish) light, and a gentle but obvious current. They used to sit out in the light and never fully opened, i think it was a bit much for 'em!
I've attached a picture for reference... what do you guys think?