Today, I only added 1 gal. PHed water I guess the temps. during the day have been dropping a bit so the plant used less water I guess. Anyway the plant is still kicking and the flower sights look a little taller, but I suppose I could be imagining it. Temp at root zone 73 above. Root ball now fills Res. 50% (this plant growth rate is insane) Tent temp. at canopy level 74 above and breezy!. The biggest and tallest flower sights sway in the fan made wind much like like palm trees in Jamaica. LOL RH 26% and holding strong. New HPS bulb held out the first night without trouble. (should I buy a lotto ticket?). The HPS light is softer to my eyes why is that?. The HPS bulb seems also to be running slightly cooler (about 20 degrees) and brighter then the MH bulb did. Am I imagining things again? I say my MH run hotter. Why? If both bulbs are 600 watt then they both consume the same amount of power. However the MH puts out less light (lumens). Whatever power is not converted to light is going to be wasted as heat. Hence MH wastes more power as heat than HPS. Of coerce as you can tell by my forum name on the right{ I dontknownuttin.