my seedlings are 11 days old from seed and the first set of main leaves are yellowing.they are in jiffys and i havnt giving them any nutes,ive got some vitalink plant start for seedlings,would it be ok yo give them a light feed of this ?
can you test your ph? i have the same thing happening and i have a feeling the high ph well water has something to do with it.
Talking about the cotyledons (first round water leaves)? If so, when they start to die, a lot of growers take that as the time to start giving nutrients.