It's been around a week ago that I started to notice bottom leaves turn yellow. Now the leaves are turning yellow bit by bit up the plant. The plants are in the vegetative stage, 18/6 lighting, 25C and 60-80% humidity. Soil has perlite, guano, etc. I water them every 3-4 days with 0,5L of water mixed with supervit. I added 2 drops of supervit to 10L of water and that's what I'm using for watering. Is this a magnesium or nitrogen deficiency? Am I watering them too much? Thanks for the info in advance.
Nothing else than supervit. I have hesi bloom and phosphorus at home though. I'm not sure if these two will do the trick? Or can you recommend me something that I can buy that will? Those pictures are of 3 mother plants, so since they're in vegetative stage I didn't think it's necessary to feed them using bloom / phosphorus. Where did I make the mistake?
Doesnt look like a big deal to me. Older leaves eventually lose the nitrogen to the plant and drop off. Its fine, but if it spreads too fast then use something like calmag to add nitrogen, magnesium, and calcium.
Alright, I couldn't find Calmag in my country so I went to the hydro shop and got Hesi TNT complex, 9eur for 1L. Should last some time. Thanks for the info and I'll update in a week or so to see results.
If u can't find a veg or grow nute you can see if u can find blood meal and it's organic it's a fast acting N feet and is great for compost teas as well I just picked up some the other day NPK 13-0-0 for 7 $