Plants aren't growing tall...

I had to add a diffuser on my phone to get an accurate PAR. It’s averaging at around 500-515. It sure if that’s satisfactory. And the Lic is around 23-24,000
 
Hi again. I’m not sure if I should start a new post, but one of my plants are getting rust on the edges of the leaf points. Not the tip of the leaf, the edge tips. Some leaves have brown spots. I assume it’s a deficiency, but not sure which one. I flushed my plants last week just to be safe so there’s no salt build up. The other plants are doing ok except for that one.
the leaves are still perky but there are a couple of fan leaves that yellowed out. I don’t know what’s going on. I started using Dr. Earth flower girl 3-9-4 bud and bloom booster. 5AAFC56A-184D-4BB8-9ECB-56FB126161DB.jpeg212AE886-003A-4E12-BA44-AC24BCD97D71.jpegA6003B13-7B5D-4769-9F9A-022980AB94AB.jpeg567DBBD6-0C99-4733-BF52-FAA030CE0487.jpeg
 

Hollatchaboy

Well-Known Member
Hi again. I’m not sure if I should start a new post, but one of my plants are getting rust on the edges of the leaf points. Not the tip of the leaf, the edge tips. Some leaves have brown spots. I assume it’s a deficiency, but not sure which one. I flushed my plants last week just to be safe so there’s no salt build up. The other plants are doing ok except for that one.
the leaves are still perky but there are a couple of fan leaves that yellowed out. I don’t know what’s going on. I started using Dr. Earth flower girl 3-9-4 bud and bloom booster. View attachment 4942840View attachment 4942841View attachment 4942842View attachment 4942843
So what happened? Did you harvest?
 
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