Hi everyone. This is my second attempt at growing. The first round I burned my seedlings with FF dirt. So... I am trying again, I was off to a great start until 3 days ago I saw yellow spots that are spreading and now turning brown. First it was only 2 plants, but now it is at least 1/2 of my 25 babies. Here is what I know: They are in a mixture of Garden Bloom dirt and seed starter (after the FF I was afraid of too much good stuff in the dirt). The Ph is at 7.0 Temp 70-75 I am not over watering (learned that last time..LOL..) They are getting good ventilation They are under 4 bulb T8 Floros 24/7 NL X AK47 & Skunk #1 I am not feeding them anything I am not spraying the leaves 2 weeks old I have done a tone of reading but I don't want to mess around with them and kill them. I appreciate any help with this. I hope I have given enough info!?! Could it be nitrogen deficiency?