GG#4 First Time Grow

Wash it off completely with water :-) how much is your ec worth?

This is not the stage of pre-flowering, just the plants showed their gender! The pre-color begins when your light mode is 12/12

From what I can tell is that's one of her lower fan leafs? I'm not seeing a sign on anything else really except that one leaf? I'd probably wait to do anything for a few days till she can show you what your recent changes have done. She's looking healthy I'm just guessing she's getting ready to self prune a leaf she no longer needs. Happy growing!

Looks like you already did what you need to do, flush. Looks like overfeed or lockout starting from salts building. The longer plants are in veg the more problems can arise. Doesn't look like to much light, I run 2000 watts HID lighting in late veg and plants do amazing., no I'll effects. Just great big buds when they start flowering. Cheers

Pretty sure it's a calcium toxicity. Any p toxicity problems should have been fixed when I flushed a week ago. If you check my diary you'll see I flushed only with calmag, and although my tapwater ec reading is low it contains a lot of calcium. Any other thoughts are appreciated, but the rusty spots in particular I think are unique to calcium.

still not sure but closing this question