Tips of leaves yellowing

My plant seems healthy except for the bottom set of leaves which are starting to yellow. I don't really know why. All the pics and every thing is in my grow journal here. https://www.rollitup.org/general-marijuana-growing/788438-my-second-grow-kandy-kush-5.html#post10205061

I find this happens after watering/feeding depending on the soil being used, I believe its caused literally from contact with the soil and feeding nutrients, I wouldn't lose any sleep over it at all, that thing looks great.

They're like pretty much touching the soil... Should I cut them back to where they are green?

Bob,
N is a mobile element so yellowing will improve. If you cut off the yellow part...then how will you know if it's improving. Where do you guys get these ideas? lol
JD

The yellow part of the leaf appears to be dead. It is crispy and feels like a dead leaf.

Bob,
This is FFOF soil, correct? It can be a little potent for small plants but I certainly would expect problems before now. You haven't added any nutrients, have you?
JD

JohnDee said:

Bob,
This is FFOF soil, correct? It can be a little potent for small plants but I certainly would expect problems before now. You haven't added any nutrients, have you?
JD

Click to expand...

I haven't added any nutes yet. Just bottled water so far to keep pH simple.

Bob,
OK, just keep that up and hopefully the plant will simply grow out of it. If it continues to worsen and you're afraid the plant will die...you may need to transplant into a mild starter soil. Some plants and strains can handle that rich soil and others can't. And also I've heard that the soil itself is not totally consistent from batch to batch and you may have gotten a strong batch. You should be able to get by with no nutes for at least a few month.

Make sure to allow plant to dry between waterings and that the other grow parameters are up to snuff...humidity, heat, ventilation etc.
Good luck,
JD