Yellowing advice!

No problem, does the water just sit on top of the soil at first then begin to soak in or does it have no problem going into the soil? Good call raising the light. Whenever I first see an issue the first thing I do is drop my lights a little bit to ease the stress on them. The pump and wand sounds nice. I use a turkey baster that hold 2.25 ounces and it stinks putting out 3-4 gallons a day one turkey baster at a time. It does force me to water slowly and helps with soil compaction from heavy watering in a can.