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when you say "lights".....
what spectrum of lights? do you run white light during the day and blue at night? Can you run them both together? Usually just white light is going to be really harsh on most corals.
what spectrum of lights? do you run white light during the day and blue at night? Can you run them both together? Usually just white light is going to be really harsh on most corals.
usually 12-15k for "daylight" is a normal range.

