Thanks,
Yea, the 250 is way too much for zoas. I needed to remove everything except the clams and SPS when I upgrade the light. There are no "near the bottom low light" places to put lower light livestock in a tank just 9 inches deep. Everywhere is very high light (even with a 150 watt fixture).
An ATO is a necessity for an open top tank with MH lighting.
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