Yellowing at VEINS only, rest green

I'm sorry for no pictures, it's not possible for me ATM.
But please help me:

On the lower part of the plant, most of the fan-leaves are turning yellow/white but only on the veins!
And it's slowly getting worse.

Never seen it before, anyone?


BTW: Plant is 3 weeks into 12/12.

Look like any of those?

Thanks for the reply, but I see no picture of a leaf yellowing AT (along?) the very veins...

Please, somebody help me despite lack of pictures.

MYSTERY that I've never seen before:

Yellowing at (along) veins only (!) first, but still green in between (like the opposite of Mg-def). Later the whole leaf gets totally yellow, and drops off.

This happens not only on lower big fan-leaves, but also smaller leaves higher up. Not the very top though.
It progresses fast

Anyone seen something like that before?

The rest of my plants are OK, and they should all have been fed the same.

I'm starting week 4 flowering, giving 1ml BioBizz Grow and 3ml Bloom (BioBizz All-Mix soil).
A a little bit Mg (Epsom salt) has been given to this plant.

Runoff-PH is high, at 7. But it's All-Mix, so it doesn't matter.

A finicky strain seems to be a possibility. Nutrition regimen sounds good. A foliar spray with magic green wouldn't hurt because of the anti transparent in it. I don't think your plant is short on N but it won't hurt in any event.

dannyboy602 said:

A finicky strain seems to be a possibility. Nutrition regimen sounds good. A foliar spray with magic green wouldn't hurt because of the anti transparent in it. I don't think your plant is short on N but it won't hurt in any event.

Click to expand...

Thanks for your input, I'm a little desperate at this point (I've been rolling dice with "Skunk-claimed" strains for a while, and finally have found a single pheno with the smell I remember/want).

Anyway, I've not seen Magic Green at my local growshops. What does it contain, "anti transparent" is a new description for me.
If I'm lazy, and should Google it - which I probably will after writing this, I don't mind you ignoring this question

Current plan: at next feeding (hoping it drinks fast), then flush with mild Cannazyme - (never used any enzyme product before!, but I have a bottle), and then give mostly tapwater with very little nutrients - but in correct ratio (like 1ml Grow/3ml Bloom but dilluted with more water).
Arrest me if I'm tottaly on the wrong track here, which would not surprise me at the moment.

Thanks again. I'll probably be fine, get a harvest - but I no longer hope for good yields from this plant. Hope potency is less affected.

Is it me, or are your favorite plant most likely to suffer stress? Probably user error, too much love

My thoughts exactly. We tend to pamper plants we care about. Plants aren't animals.
Anti-transparent is a kind of plastic covering for leaves and allows them to transpire less water. It used to be used exclusively for winter protection on evergreens but is being used more to simply reduce transpiration in stressed plants. Magic Green has N in it. N is a mobile element and is readily absorbed through leaves. Google house and garden nutrients you'll see what I mean.

Yea id guess nitrogen, heres another pic that might show what your talking about

Thank you all for you input. It's too early to see any progress (I did the cannazyme flush + nutrients), but I'll try to remember updating this.