I have a AGA 180 (72x24x24) built into a masonry wall with a max clearance above waterline of 13.5 inches. It is lit with 3 250watt XM 15ks and old gull wing parabolic reflectors. Tank is 2 years old with many large sps colonies positioned mostly mid to high. A combination reef wall sides/center pillar aquascape 2 clams on the bottom, currently with no heat problems. I would like to replace the reflectors with the Lumen Brites, however I am a little worried about bulb height off the water with these, as well as light coverage in that shallow of a space. Now I have 11 inches (bulb to surface) clearance off the water with the old reflectors. lastly, do you all think that the large Brites would give better spread at the lower height than the Minis?
