I moved ya to the reef forum Mike.
I agree with Newguys post, but since you already have the 20K bulbs, which are already a blue colour, how about running one 50/50vho and one super actinic vho.
Or a pair of 50/50 vho bulbs as the main light for the day and just run the halide for a few hours.
Of course neither of these give you the actinic look in the evening unless you could get one normal actinic in there somewhere.
I still dont like running 30w bulbs on a 40w ballast, but thats me.
Then on the other hand, I have seen some tanks running 20K bulbs and super actinics only. They did look nice, but one has to like that type of colour.
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Doug
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