PLease help! I planted these clones a few weeks ago. After being planted for approx two weeks I gave them a feed of fish fertilizer (Alaska). I used approx 25% of the reommended solution. I had to to leave for two weeks on business and had a freind watering them for me. When I got home yesterday I found them with brown leaves in the middle. Top and bottom leaves were just fine...now it looks like the "browning" is moving. My temps inside the box is 78-80 degrees...300 watts CFL...please take a look at the pics and tell me what the heck I am doing wrong. By the way, soil is Kelloggs premium. Thanks!