[mseepman]

My thoughts on my 150 not being bright enough stem from a few different things, including observations on corals put at the bottom of the tank.

First off, the general consensus on RC, here and RAG all seem to agree that 150 HQI is still not meant for deep tanks. Secondly, if I put a clam on the bottom of my tank (I have about 1" of sand) it will die in a relatively short period of time. If I move it up, it can thrive. Any coral that has required a reasonable amount of light has been unsuccessful if I put it near the bottom of my tank.

I have run the original Coralife 10k, Coralife 14k, a Sun-blaze 14k, and now will be switching to a new Ushio 10k this weekend.

So far, these are just my observations with my own tank.