What do you think. It’s a gold leaf photo. It has been making these rusted leaves all along but it seems to be getting worse. 10 weeks 6 days in. Ideas?
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Is ur plant in flower and what medium and nutrients are you using and are u feeding it cal/mag aswell
In flower, yes. Fox Farm FFOF soil. Fox Farm Trio of nutes as per the chart. Cal-mag once weekly. In 3 gallon pot. Lights on 12 and 12. Water once every 2 days with about a quart of water. My grow box has four plants. This one, (Gold Leaf Photo) and three Gelato Autos. All the Gelatos seem happy and maybe ready to harvest soon. This guy is in flower but has a way to go. The leaves have been turning yellow and then crinkley. Not sure she will make it.
Can you please post a pic of the whole plant?
Just looking at these charts, I would guess Cal/Mag, potassium or zinc (or a combo of all)
Before you chase deficiencies, can you do a soil slurry test and give us the ph of the soil?
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@Caligurl this chart is fantastic! Thank you so much for posting it.
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Thanks for the chart @Caligurl
I just saved that to my downloads!
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Thanks for all your attention. This one little girl needs help. I did a slurry test, 6.9. Today I watered with Cal-Mag and Big Bloom and Tiger Bloom. I have some pictures here. One of the whole plant and a closer shot of the problem leaves. The other two pictures are her neighbors, three gelato autos. All have been raised identically in the same grow box. Autos looking great just waiting for amber trichomes.
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Good luck , I’m almost done my first grow and I’ll never use FF soils again. Both happy frog and oceans farm had horrible PH buffering issues. Idk if that’s your issue but it wreaked havock on my leaves.
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I have been using FF for 17 months now, no problems. Most common issue among new growers is overwatering. Which can wreck the ph of the soil.
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If you can hand water at least once a day or set up an automatic watering system I’d 100% recommend you give coco a try. Over watering is pretty much impossible. Plus, the only nutes in it are things you’ve added yourself. Takes the guesswork out of feeding and troubleshooting.
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Yea I am looking into Coco but wanting to go all organic next go around as well so wanting to make my own living soil or go pro mix. I know it’s not overwatering in my instance, I weighed dry and wet and only watered according to weight and feel of soil. Plus my other plant that wasn’t using FF soils is amazing looking and has had 0 issues including correct PH out and all 3 plants had same watering schedule, same nutes, same water source same PH literally everything the same the only difference was soil brands.
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Also after many many many forum topics, websites and Facebook groups it’s not uncommon for FF to have PH issues it seems QC has gone down unfortunately 
even my local hydro store who’s sold FF for years said same thing and said it varies depending on where you get it from etc
I had the same issue with the fox farms and was given some really solid advice from everyone on this forum and since your using the fox farms you probably need to get some of there boomerang to flush out the back up salts my ladies were looking the same and it worked for me hopefully that is some help
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Are you feeding or watering to liberal run off each time? If not the root zone has accumulated salts from the previous feedings preventing certain nutrient absorption. Agree with @Caligurl the possible Potassium and calmag deficiency 
Thanks for all the input. What has me scratching my head is that three Gelato autos sitting right next to m problem child and they are doing great. The soil out of the same bag. All watering schedules, feeding schedules, light schedules, identical. I did order some boomerang and it should be here today. I’ll give it a try and see what happens.
Autos are a different animal. They grow quicker and move to bloom quicker. They will have different nutritional needs just based on that.
Over-watering is normal when you begin, but with FF soils, and nutrients, you must water to run-off each time to keep the salt build-up at bay. The important thing is to water less often.
a PH of 6.9 is fine. A tiny bit high… I like it around 6.3-6.6 but it’s not bad at all.
When you move to flower, you need to up the N and K (which Tiger Bloom does) but I usually find that I really need a boost of K so I use either Potash or some hard wood ashes (I happen to have ash available since we use oak in our wood stove all year round.
After flushing, follow with 1/4 strength nutes but add some potash and a mychos (like Recharge, Mykos, or Great White along with a Micro Nutrient (I really like Peruvian Gold Micro Builder)
I’m actually making my own EM-1 right now… really cool science experiment btw if anyone is interested in how, just let me know.
Anyway, long story short (LOL), the damaged leaves will never heal so I would take off any that are mostly damages (like 75%+). You have a lot of damaged leaves so you’ll need to leave anything at all that can photo synthesize and let 'er ride until harvest.
Time to chime in. I have seen you post terrible reviews of Foxfarms soils multiple times in the forum and put all the blame on them. It is not the soil. All I use is FF happy, OF and Coco loco. Never had a problem. We as caretakers/budtenders have to pay attention to our girls and what they need. If something goes wrong, it is usually grower error. I mean just look at this healthy girl using nothing but FF products…
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This is contrary to what I do and everything I have read. Nitrogen should be reduced during flowering. Any other input on this topic would be appreciated…
Oh yea I get that for sure and it was my fault for not checking PH out because being a beginner I assumed the soil would buffer PH like it’s supposed to do. By the time I realized and had to add dolomite lime / flush etc it was too late. So yes it was my fault for not catching it but I was relying on the soil to be what it was supposed to be. Like I said the other girl who I have crappy random tractor supply soil I mixed together is amazing and the PH actually buffered.