Help! Nitrogen or magnesium ?

definately deficient in one. I cant tell which. One of my plants is almost all yellow. Heres some pictures

What medium lights nutes etc.. is new growth affected, what about heat& humidity.? Any other variables that you can disclose will help you get a correct diagnosis and prognosis.. good luck happy growing
Gaz

Roots organic. 6k flower. Complete nutrient line. Soil. Heat 74 humidity 40-55.
Yes new growth has been affected. Some plants are fine. I tested ph run off and its between 3.5 and 4.5. Way to low. Does this mean nutrient lockout? Should i flush?

your roots are having trouble keeping up with the canopy. Your plants are tooo cold for the number of photons that are hitting them. ASSUMING you are using ANY commercially available fertilizer and not just pissing in a bucket and watering with that

Should i raise temp around 77-79?

I would consider it, and if you are using led light I would go even higher. ALSO check your root temps what a re they at?

Im using hps. Will raise.

Will check also

Is my runoff also a problem. I always feed ph water around 6.2-64

What you have is not a problem of what you are giving them , they are having a problem taking in what you are providing. So we have to work with that in mind. Why are your plants not drawing up nutes? Temp? Soil too wet and the roots have suffered? Or other reasons?

I feel like i water them properly. Every few dAys when they feel light. 10 gal pots and water them til they drip. I feel like i should maybe flush? But im no expert and just watered today so id have to wait.

I may have been giving to much nutes thinking it would be better for the plant. I kno noob mistake. I had soem extra boosters from last run and kind of jusy threw a bit in for the pst couple weeks. Along with a complete line of somethingn else. Thinking it'd be fine. Rookie mistake i think. Couldve totally effed up

I am not saying you over feed , but a great piece of advice is that a plant that you feed 75% of what it needs will grow 75%of what it should and a plant you feet 125% of what it need will grow 50% of what it should. Keep in might plants in nature grow in water and just dirt and never have nute deficiencies.

Let em dry out , giv'em some water see what happens.






.aand if you like here is a cheat, get some ammonium nitrate add a drop of soap add some folvic acid. PH over 5.5 under 6.5 under 1 ec and follar feed with that. This will buy you time to sort out whatever else is going on

Right on. Thank you