Went on vacation for 10 days, had the auto feeder droping dry food in for fish 2 x per day. Both scrubbers growing a lot of green for the past cpl months, however, still good amount of algae growing in main display. Came home to a complete outbreak of red/green cyano...and I mean everywhere! My question is, since all my sps and lps are long gong(they all died off over the last 6 months) and only have 6 fish in the tank, can I turn the lights off, or run them only for a short period of time to eliminate all algae growth, and kill off the small amount of aptasia's?