Reef breeders photons would be high on my list as well.I haven't used Reefbreeders. People seem to really like them. I've seen some really nice SPS tanks lit with Photons. If I was choosing LED for a 4' 90 gallon, they would be on my short list. With 'panel' style or bars or strips, I would get the fixture as long as the tank. @Ron Reefman could tell you anything you wanted to know about them.