new tank... new light fixture... 8 bulb current usa no ind. reflectors and I am glad..... I think I have way to much light going on.... diatoms immediately kicked in on cured rock, and I have had to go out and get a big boy (jumbo turo) and I picked up 10 more ceriths to try and help out. I have 4 actinics and 4 10,000 k bulbs I believe.. they might be 12. Would I be helping the tank if i switched out two of the white lights for two purple ones? I think itd give me a nicer look, but would it help with algae or no.