by kgross » Sat Mar 06, 2010 8:55 pm
I will tell you you don't need any actinic lighting at all to grow corals, and if you are low on lighting running all daylight type bulbs will give you more light energy into the tank. Now the corals will not look as nice when in the tank, and depending on the coral some will change in colors, but they will still grow and be healthy, so don't worry about the actinic light as much as total light. With a 4 foot long frag tank, why don't you do some 4 foot long bulbs, over it?
Kim
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