Could just be me but 8 hours seems a little long too. 100 watts is pretty bright for a 24 (good news), but could be backed down a few hours. Also there is really no need to run the moon lights the rest of the time. I think (and have been told) that some good old fashioned "dark time" is a good thing. Also I agree you could try a couple days of no lights to just slow it down.

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All information supplied is in my humble opinion. I am sure there is always someone out there who knows more then I, that will chime in soon.

Now back to trying to figure out how to combine my passions and either make an aquarium that does 0-60 in under 3 seconds, or ride motorcycles in aquariums....