Tiny Bit of Yellow on Seedling Leaves

[Crumb93]

Yo, that looks like what this guy saw here:

Brown spots moving inwards from marijuana leaves

A question from a fellow grower: Im new to indoor growing so here is my layout. I use 5 gallon aeration smart pots, fox farm happy frog soil, 1000w apollo mh/hps light, sunleaves Mexican & jamaican bat guano, r/o water, wiggle worm earthworm castings and I also have used Advanced nutrients micro grow & bloom ph perfect, blackstrap unsulphured molasses. The symptoms are brown spots starting from the outside edges of fan leaves and eventually covering entire leaf causing leaf to become dry & even…

To me at least. Could be a me thing but I have to click on the pictures in that thread before they show up. Also I love your username. I’m in that area