I'm gonna change it. I probably shouldn't as the tank inhabitants aren't doing too well. But I feel that before I changed to AB+, the tank was doing better. Mind you its probably been over 1.5 years ago. Or whenever they first published that video. With that said tho, I swear I tested ALK daily, then every other day and then weekly and I notice no change. Yesterday I tested albeit at night and I was close to 10, 9.7 on hanna and 10 on salifert, and my corals are looking like crap. So...at this point, might as well change the lights.
Ok...so I am about 5.75" from the surface of the water. I have one light in the center and the other lights are 12" apart, measuring from the edge of the light fixture itself.
Thanks for the help. I haven't heard too many people using these lights. I personally love them and I am going to get a seneye to measure, more for peace of mind.