Hey all. I have the option of getting two 4 foot T5 fixtures for my 8 foot long tank. I have about 6 sps frags, but have an order ready for many more saved for the near future. Would the 12 ATI bulbs be too much light or would it be ok? The tank is 24 inches wide and 30 inches deep. Lights I have now are cheap Chinese black boxes. Any advice would be appreciated. Thanks!