Help! Leaves are turning yellow/brown and cracking

I have 5 plants 2 different strains, all in soil in 1g pots in their 4th week of vegetative stage. I've been seeing some leaves look really bad. Some are cracking and have small holes in them, while others are turning yellow then brown and crispy. One fan leave on the lower branches fell off today. Here are some pics.


Room temp is 72-82F

RHumidity at 54%

18/6 light cycle

Feed ph water of 6.3-6.5

Feed mutes every 3rd watering with fox farm trio at half strength and 2ml of cal mag.

Reservoir is aerated and is ph.8.8 before I add anything to it.

Soil run off water comes out 6.3-6.5 ph / with about a 6 EC


From google, I think it might be calcium definciency or possibly boron or manganese?

Jose zendejas said:

I have 5 plants 2 different strains, all in soil in 1g pots in their 4th week of vegetative stage. I've been seeing some leaves look really bad. Some are cracking and have small holes in them, while others are turning yellow then brown and crispy. One fan leave on the lower branches fell off today. Here are some pics.


Room temp is 72-82F

RHumidity at 54%

18/6 light cycle

Feed ph water of 6.3-6.5

Feed mutes every 3rd watering with fox farm trio at half strength and 2ml of cal mag.

Reservoir is aerated and is ph.8.8 before I add anything to it.

Soil run off water comes out 6.3-6.5 ph / with about a 6 EC


From google, I think it might be calcium definciency or possibly boron or manganese?

Click to expand...

Looks like lockout and/or potbound to me. You have to flush and transplant those things into some bigger pots!

almost looks like some bug is eating your leafs

Jose zendejas said:

6 EC

Click to expand...

holy crap EC of 6? are you sure??