Well after months of agonizing, I ditched my Vertex Illumina LED fixture. I have been running it over a year. Loved the control and the colors but my corals hated it. I am sure the user was the error but I couldn't get it dialed in. I got some pre-sets (10k, 14K, 20K) from Vertex but nothing worked. I combined two nano's into a 66 gallon. The nano's both used Metal Halides. Corals grew well and had nice color. As soon as I got the LEDS, no growth and color loss. I started out with low intensity and worked my way up. I tested different color variations and nothing. Insult to injury, I spent a lot of money on the light. 2 days ago I installed an Odyessea 250 watt Metal Halide, T5 (actinic), LED (moons) fixture. Immediately upgraded the Metal Halide to a Phoenix. T5's as well. I got a nice light mount out of the United Kingdom. The new light and mount was half the price of the Vertex. Not that cheap is good but I think I got a decent light. I am hoping to kick start the tank again.
