YELLOW TIPS ON LEAVES

If you need any other help shoot me a DM' Your inbox Is the little green arrow in the bottom right hand corner of your screen. Good Luck!

No deficiency there. Just look at how dark green those leaves are!! You plants are very healthy as far as nutes go so please dont go adding more. if anything dont add any at all for 4 days to a week and see how she goes...bet you will be surprised how well she does with just water for a week. And unless your using a LED your light is a bit close...id say the plant has grown to the point you need to raise the light a bit...how high I cant say for sure.. if it was an LED id say 4-6 inches be fine.. but less sure on a HID in a tent..I only ever used HID in a full room with 8-10 ft high ceilings.

In future, when asking for help, please only ever post pictures taken under "normal" light, pictures taken under grow lights are terrible to look at, however, this seems to be a common mistake by question posters on this forum, so you are not alone in this regard! Tip burning like this is usually caused by too much nutrients, particularly nitrogen. Judging by the uber green and plastic look of the leaves, I would say you are feeding too much/too often. With autos it is best to give half strength or adopt a schedule of plain water/plain water/feed/plain water/plain water/feed. You will lose nothing by going to a more cannabis friendly 18/6 either. Cheers, Organoman.

Nute burn is my guess, how much are you feeding?

If you are at 24 inches away with your light it could be closer actually. Not sure why everyone else thinks it's too close. The canopy would have lots more issues if light was too close. In my opinion of doing this for a few years. Good luck

Raise light and make sure u have enough air moving between light. if u put ur hand on top of the bud underneath light if ur hand starts burning it’s to close or u don’t have enough air moving around!!! Just my personal opinion I’m no expert 😂I’m still learning

@BlackPlague hi mate I do agree with the Mouse in that the lights need raising especially since you are using those HID's which can get very warm indeed!! Another tip regarding your diaries , try to take atleast a few pics without the glare of the lights as the orange color makes it very hard to look at your plants and diagnose problems etc Hope this answers your query 👍

Looks to be mainly on the top most growth and newer stuff. I think it's light stress, Try moving your light back some more, advance light stress will be bleached buds. They turn white. Good Luck.