It is only about 8" under water just off center maybe 6" from the MH...which is a 400w plus 4 t-5's. I'd imagine its plenty of light. Can't reallyu move it up now too as it's near top of rock work and encrusted.
Ok first off the piece is stunning and will only get brighter in time. Now for a few questions if you don't mind..
1) were did you get it from? Is it really true SSC or just what someone sold it to you as?
2) do you feed your sps or your SSC?
3) what I'd your lighting schedule like and what bulbs?
4) if it was browned out then it will require lots of time to color up.