Hello first time grow here. I have a little plant about two inches tall under a 600 Watt MH at 50% power in my closet and im about to start 4 more seeds. I have two 600 Watt Ballasts that are interchangeable and i was wondering when my plant really start vegging should i run a 600 watt MH and a 600 Watt HPS in full crank 18/6~12/12 all way through grow cycle? Any input on this would be great thanks guys.