My Nuclear Greens are happy near the bottom, ~27" below the surface. Luvmyreef has some outstanding colonies that are near the bottom as well. So, to answer your question, if they are Nucs, give them med to med-low lighting.
Oh my blue lights are on they are a dark green and was sold as nuke greens but they havent turned nuclear green color and I have had them for 3 months, I put at bottom but than some closed up. I will try low-middle.
No the dark green color like I have now. But they said they would turn nuke green in a while well it hs been 3 months so are they nukes or just a green paly?