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Resinhound means 0.5 mS/cm, but I think you are measuring in uS/cm. 1 mS/cm = 1000 uS/cm

They are rootbound. Transplant ASAP!

Isn't 0.5 too low for soil runoff?! :confused:

Looks like iron/copper deficiency to me, maybe because of your high watering pH. Not sure though! Why 8.1?!

Any EC around 2.5~3 (1700~2000 ppm) for soil runoff should be normal. But your pH is too low IMO! There are many soil experts here that can give you a better answer.

What's your medium? You have to give us more info than that! :roll:

Are those thrips I see on the leaf? I think you can find more of them on the underside. Those black specks are also caused by tiny mites. I see one of them dancing near the right edge! Seems so happy!

But I think the biggest problem here is that we are trying to apply what happens in nature to indoor environment. We think plants need a dark period to rest and 24 hours of light per day is unnatural, because we are trying to compare indoors with outdoors, which is absolutely WRONG! We can't...

Exactly what I was expecting as an answer. :mrgreen: ;-) Don't sweat hombre! I didn't mean to criticize you in any way and I apologize if it seemed that way. I just think that experiments like this can't be done in common indoor setups. Because it requires very accurate monitoring which can...

It's totally normal and there is nothing to be worry about. Cut them off!

Your experiment is valuable scientifically only if it's done under exact same circumstances, with the same genetics and the same phenotypes, thus cuttings are way better choices for this purpose than seeds IMO (especially if it's from a hermie plant!). Each seed has its own characteristics and...

And this is a quote by Ryan Riley from his book Growing Elite Marijuana, page 70: "One heavily debated issue among growers is whether the dark period is needed during vegetative growth. There are various mythical claims that a darkness period is needed, but there is absolutely no strong...

So plants only grow roots at dark period and can't use the stored energy under 24 hours of light?! Also can you explain a little more about "cooling off"? ---- This is a quote by Ed Rosenthal: "One way in which plants are categorized is by the way they gather and handle carbon dioxide...

I did, but I don't think you have read all my posts in this thread. Especially this one.

Are you growing in coco?!

How are your seedlings doing mate? :)

For how many plants and what strain? Do you plan on using CO2?

I think that doesn't apply to indoor growing, but still explains why we don't have to do a lot of stupid things to achieve a big harvest. :rolleyes:

haha ... nothing to worry about. :bigjoint: This happens very rarely, but it's ok.