is my lights causing this?

[bobssecrtsn]

Hey guys, i have a problem with my light setup atm. i cant explain it, but i know for a fact its not RTN or STN because theres still PE.


SO my situation is, my light fixture is about 13" off the surface and about 6" to the corals, and when the lights go off the SPS seem to have no color on the other side where its not getting any lights. im not sure what i should does but when the lights come back on you cant notice the color difference. ill snap a few pictures in a bit.

its like my light doesnt have enough spread, or the SPS has to many branches and blocking the flow. when the lights are on there is alot of PE.
SPECS:
AI SOL NANO 75W 80B 90RB 13" off the surface
18x18x11H shallow cube
13g sump
vortech mp10

 

[bobssecrtsn]

upppp

 

[doonan75]

I'm no expert but it looks pretty normal to me. If they are growing and look fine with the lights on don't worry about it. All of my corals look different under different lights.