I purchased a used 4 bulb T5 fixture, and look to replace the bulbs soon. It's an aquatic life fixture and I believe it still has the OEM bulbs in it. Its running 1 White, 2 Blues, and 1 Purple bulb. I'm looking to keep softies, and maybe LPS corals in this tank, and I'd like them to grow, and flouresc (sp?). I've been looking at switching to ATI bulbs, but I just heard about another brand called Korallen-Zucht, that might be worth looking into. Looking for some advice on which way to go on this. Below is a quick video of the tank the lights will go over.