I was just about to pose the same question. I placed mine on a LR
about 4" under the surface just under the MH
on that side. I'd read that they are high light demand and it found a nice niche in the rock to anchor its foot. About 3 days ago it got out and started moving down. Now it's entirely in the shade between the LR
and overflow. It still looks alive, so I figured I'd just let it find its spot. I'm checking it often because I don't want it to die and crash the tank.