Purple stems?

rsx2009 said:

Is this a phosphorus def? Temperature? Lighting? Genetics? This is a bubba kush . Thanks

Click to expand...

Had the same issue using RO water in hydro. Reverted back to non RO water, 75% nutrients, + Epsom salt with each feeding, fixed within 10 days. Invest in a decent pH meter though because that may be your issue to begin with and then make sure you calibrate the pH meter every time before you use.

Thanks I'll look into that meter. I just tested some of the run off water and it was very acidic, according to the green testing solution in the tube. I'm
Guessing perhaps the water I'm feeding is too acidic?

IMO its caused by a defficiency. I have never seen existing growth revert to show signs of a correction. But i have seen new growth show signs that a fix has been made in really young plants and during veg.

It looks like you are feeding it plenty. I would invest in a good ph meter and try to dial the PH in. If you are in coco you shouldnt be measuring the runoff. If you are in soil then ill let the soil pros advise you.

Good luck