im running a 8 tube t5, rapid rooter tray and plugs, keeping the light 6 to 8 inches away from the dome. 2 seeds popped up and were nice and green i could even see a regular leaf begining to form. but today they look a shade of brown and a little shriveld. tepature in room is around 80. the plugs are drying out and i have been rewetting them,wat could be wrong. please help i dont wanna lose these doggy nuts seeds.