Is this a nutrient problem?

I was looking into all of your diaries, and i think all of your grows having the same issue my conclusion is, your growmedium is not good for the lil seedlings taking a MJ growing soil is always a good choice.. Mj loves poor, fluffy soilmixes in the beginning of the grow. some soils are to " hot" or rich for the seedlings. for more info aand some soilreciepes check my diaries with a tutorial...(.Like my sherbet queen grow)

Do you get the leaves wet? Is what it looks like what happened