veins

this is my second grow. The strain is blue whale. Og kush x blue dream. This is about 4 weeks in veg. It seems the veins of the main stems are a dark purple color as well as the large fan leaves. Is this a deficiency or toxicity of something?

So about 1 month ago I had thrips in my flowering room. Was leaving for a week so I decided to just kill everything and be done with it. Fast forward 3 weeks later and my veg room has been experiencing mysterious damage ONLY ON THE VEINS UNDERNEATH THE LEAFS. I have a microscope that is able to...

I was about to start flowering my plants, but it looks like I have a phosphorus deficiency. Does this seem like the culprit? The plants are about 4 weeks old, and there are only a couple leaves like this, nearly all of them are at the base of the plant. My nutrients have an npk of 5-3-3, but it...

a couple of tiny problems at the end of flower... not worried, cutting anyway, but couldn't find what this might be (just in case, for next time) Sorry about the quality, bet I could do. The leaves you see look like mesh... the veins still there but the rest is gone. The specs... idk... they...

Hello everyone. I've got a slight issue with one out of eight plants, this one being Jupitor OG. The new leaves appear to have a few white veins towards the base of the leaf. The top two new leaves also appear to be suffering the same but on the tips rather than the base. The current setup...