I see the majority of people are using 250 watt lights. Do you keep the more light demanding SPS? and how low are you able to keep them in the tank? The way I understand it is that 250w is enough light, but penetration becomes an issue. Will high light SPS (acro's) flourish at the lower depths?
I can't seem to find any concrete data on running 250 watt SE bulbs with HQI ballasts. I understand that the light output is more, but can't find anything stating just how much.
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