Browning around leaf viens

[smpaz420]

this plant is in FFOF soil, inside, last runoff check was in the 6.5 range (going to check it again tonight). have been feeding her Grow big at 5ml per gallon ph to 6.5. Just turned the lights to 12/12, temps are around 82, and overall she looks really healthy, have just noticed a few fairly new leaves that are showing this symptom.

[stinkyattic]

Do your next watering with plain water at pH 7.
That looks like a potassium lockout. pH 6.5 is low for a soil grow.

[smpaz420]

will do thank stinky!

[VapedG13]

I get that same thing but worse ....it looks like black spot....a fungis

[stinkyattic]

How dry are you allowing the pot to get between waterings? Fungus is definitely a possibility, and K def is linked to fungal infection since potassium is vital to a plant's immune system.
That pot looks really big for that plant. Did you just transplant into it? Are you drenching the new soil before the roots have had time to spread out fully?

[smpaz420]

Yes i just transplanted them into those pots, the roots were bursting out of the old one. And i do let them dry out 3 to 4 days before watering, they seem to really like that. After i watered with plain 7 ph water they are doing great! i have seen alot of new growth. thanks again stinky, you really know your stuff!