I have 5 SOL Blues over a 230 here at the store, mainly SPS dominated tank, and they are 18 inches over the top, and I have them run whites at 40% and blues at 100% for 9 hours a day with a 90 minute ramp time, I do this because i like the deeper blue look, but ive had them run at 70% whites and 100% blues for the same time period for a few months and they didnt burn anything.
Steve
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