Leaf tips do I have an issue


Do I have a problem or hopefully it’s just burnt tips from the light

I’ve taken my 600w HSP light out I noticed it was very hot in tent and replaced with LED light for the veg stage and once flowering am planning on putting HSP light back in

But please have a look at pics in case it’s something else, any guidance will be appreciated

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That part of the leaf is normally referred to as the “leaf margin” and if the margins are burned it is usually a sign of feeding to much fertilizer because the leaf tips are where the plant sends the fertilizer first.

I would consider doing a “run off test” to determine how much fertilizer is in the soil and if it’s too high i would probably flush the soil


Thanks for that, I’m new to this and it’s my first attempt, what it a run off test? And how do I do that?
Thanks in advance

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@Kentishlion Your main thing is you want to make sure your pH is correct so make sure you have a pH meter you don’t have to check runoff you just want to make sure your pH is correct between 6.3 to 6.7 for soil When you mix your nutrients up you want the same pH


Thank you, I’m using coco would that still be 6.3 to 6.7 reading?

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No lower for coco. 5.8 to 6.0 seems to be sweet spot for me with promix hp.

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