Hi guys. I decided to upgrade my lighting from a small pendent 250w hqi light to a 400w radium with the cozumel sun reflector. reason is I don't get enough coverage with the smaller reflector for my cube tank. 30x30x24. my question is how would you acclimate your corals to the new light? Right now I'm running the 250w about 12" off the water for 9 hours a day and 2 24" t5 Blue+ bulbs for 11 hours a day.