leave turning yellow

Whats the ppm? Runoff?

 

looks like a mixture of small nute burn and leaving those water droplets on your fan leaves while the light is on. try taking a natural light pic as well so we can see the actual color of your leaves.

oh yea also try not to have just watered before pic, as watering causes the plant to droop. drooping is a sign for other issues, makes the process of elimination easier.

glad you did tho because i wouldnt have seen the water droplets. water acts as a magnifying glass as when you use one with the sun to cause heat, that same process happens when left on leaves. why you only foliar feed during the night cycle.

 

Most likely over fertilizing. If you have a decent soil to start with, you don't need to add any bottled nutrients at all for a while.

spiral out, keep going

 

What he said i use Fox Farms Happy Frog and Ocean Forest. Ocean Forest feeds 4-6 weeks without adding any extra nutrients. i may supplement some cal/mag closer to the 4-6 week mark if they seem to be lagging in growth in foliar feedings about 150-350ppms worth however big the plant is

 

heads up your temps are running high for a young plant when they fill your tent its going to be hard to combat it which in turn will make humidity harder to control do you have a inline fan pulling heat from the top of your tent and pushing it out? and a osculating fan or just a fan helping circulate and cool air? that also aids in drying the leaves keeping the water droplets from harming them. i always give my leaf a little thump to knock the droplet off if i happen to splash it a little