Hungry girls,or what?

[Yes4Prop215]

Wow my plants look really similar, except i am in hydro. My fan leaves are yellowing and then turning brown and crispy.

So this is PH problem? I need a solid answer, because my fellow growing partner seems to think its some kind of deficiency and we are having arguments over this,.

 

[sahima]

The only thing that makes me doubt that it is a p.h problem is that the problems started after the first transplant to fresh all mix .Even if the tap water is out of range, it wouldn;t cause so serious problems. As basstard mentioned at first waterings, the soil works as a p.h buffer.
I am now watering with less quantity of water, i think i will continue to give some ferts after a couple of waterings in the new soil. Until now i was giving mild fert solutions and i don't believe this is overfertilising . Maybe overwatered but not a serious case of overwatering. Maybe it is a combination of factors. Seems that now things become better.. we will see.
Thank you all

 

[magiccannabus]

some people dont check there PH & say thay never have / dont have to (thats up to them)...
i say its 1 of the most important things

I agree for the most part, but I must say I've known a fair number of old hippies who grow with their own homemade composts, and never have pH tested anything in their lives and still grow good pot. Knowing your soil mix fully helps a lot IMO. They know that with a certain type of soil, amendment, or whatever, it will have certain properties which they've learned to gauge from watching how the plants react to the various things they have tried. It's not very scientific, but it produces results.

So yeah, pH is important, but it also shouldn't be if you understand your mix.

That said, they don't look hungry to me either. I've had a few plants do this over the years and I think it's from composts in the soil, or sometimes too many nutrients too early. I think those old leaves got screwed by it. Watch the newest growth closely, and watch for spreading of the problems along the old growth. If you keep checking back every hour or two for a while, you'll notice changes if it's critical.