HELP.. before it's too late

Latest updates with pics.. https://www.rollitup.org/general-marijuana-growing/121819-first-grow-ww-6.html#post1699142

Is this normal? Only 4 weeks in on flowering, and another 4 more to go..

The top growth looks healthy. Looks like nitrogen def due to flowering nutes. I wouldn't worry just yet.

Little Tommy said:

The top growth looks healthy. Looks like nitrogen def due to flowering nutes. I wouldn't worry just yet.

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Tommy is dead on but if you have veg nutes you can add a small dose of it along with your flower food on your next feeding. They are lacking nitro and giving a bit of veg food wil green them back up, they will not reveg. You really don't want your plants to go deficient yet, that is for closer to the end of their life. Nitro is still important to your plant because the buds are still packing on weight and trichomes. If the plant is deficient the bud and trichome production will either slow down or halt. Luck

ditto.. dont change a thing.. the plants actually look great! nice buds and green everywhere except a few leaves.. just clip those yellow leaves off, they wont be producing sugars anyway and the plant could do without trying to keep them alive.. you can always add nitro to fix the deficiency but that is always dangerous (I think) during such a crucial part of flowering.. those extra leaves arent really giving the plant all THAT much more energy anyways so clip em and maybe mix a tblspoon of molasses in a gallon of distilled water and use that for your normal watering to counter the sugar decrease caused by those clipped yellow leaves not producing sugars for the plant anymore.. buds look excellent though.. good luck!

thanks! appreciate the help. I guess it's not too obvious in the pictures, but the top leaves aren't as green, and seem like they're getting a very light or lime green. I hope it's just nitrogen, but some leaves also have brown spots on them.. making me think it might be Mg or even sulfur..

Oh yeah, so I've been using Fox Farm's Tiger bloom, which is supposed to have SOME nitrogen in it already.. so I can't see how they're lacking so much, esp since the last time i watered I fed it too