Hello everybody. I just got myself a second hand ATI led powermodule 8X54, so 8X54 T5 bulbs plus 3X75 led clusters. My tank is a mixed reef 170X56 (width)X53 (hight)cm. What do you think? Will that be OK or maybe an overkill? Do I risk frying my corals? What settings do you think I should start with to get my tank used to the new lights?