Nutrient Deficiency or Toxicity

[Timmeeeh]

Thanks for taking the time to read this.

When leaf tips start to yellow, I immediately think nutrient burn and cut back on nutes. It sometimes takes a while before I start to suspect that the problem may actually have been a nutrient deficiency. Or light burn. Or heat stress. Or...

Does anyone wish to offer their opinion as to what these leaves are trying to tell me?

[marshallbdg]

if it starts at the very ends and the rest of the leaf stays green then typically nute burn. you're right though cos too much light or heat can also cause them to look like this. you got a close up of the setup?

[Orggrwr]

Hard to tell for sure from the pic but looks like either potassium or magnesium deficiency. Both can cause the yellowing between veins. Click on the menu icon at the top of this page and go to "plant problems ". Lots of good

[OldManGrower]

I believe it's light burn. Cut your intensity or raise your light.

[Allotrope1000]

Hey, Tim.
The forum probably needs more information on your grow to better diagnose the leaf symptoms.
Soil type?
Nutes?
pH?
Light type?
Temp?
Et cetera?

[Bluey]

If only on the top leaves probably light burn.

If its appeared on the bottom leaves also likely potassium deficiency and treat by lowering pH.

They'll recover nicely once you sort it