I have a 150 HPS and a 125 CFL over two plants in my closet. I noticed the leaves on the tops of the plants curling up and yellow around all of the edges. I am keeping the HPS light about 12 inches above the plant. Should I move it higher? I do not know exactly what the temp is but it feels a little hot to me. I turned off the CFL to try and cool it down. Any suggestions what to do?