About 4 weeks into my first grow, not sure what the problem is. We just recently started nuteing them and were going by the directions on the foxfarm bottle.

We thought it was nute burn so we stopped nuteing them as of a few days ago.

What do you think? Nute burn? Disease?

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disclaimer: it's my first grow too

by "going by the directions" do you mean starting them off very light (about 1/2 regular quantity) or going straight in to the suggested amounts?

want soil are those girls in? (if it's FF or MG it could likely already have some nutes in it!)

you said fox farm, i assume you're using Grow Big? i believe they suggest 1 tsp / gal, but up to 2-3. when you're just starting out (4 weeks is about the right time) you probably only want to give them 1/2 tsp / gal for their first feeding or two.

it looks like nute burn to me (see disclaimer). if it is, and it continues, you'll want to flush the soil and give them a few days to recover.

ps: i believe (see disclaimer), the damage is done on those leaves and you might as well remove them, as the damaged parts will not recover

Thanks for the response. They are in foxfarm ocean forest and youre exactly right, it would still have nutes in it. I totally disregarded that. We transplanted them and added nutes to the water at the same time, its nute burn for sure.

Ok, so I should just cut the dead leaves off or the whole branch with the dead leaves?

Don't cut the whole branch. You could also leave the leaves on until there almost completly dead.

Really looks like nute burn. I am the master of nute-burning my plants and they look exactly the same as this. What I didn't realise is that potting soil is jam packed full of goodness and weed plants need about 1/4 as much as regular plants.

I was wondering about this. In the case of nute burn, couldn't it help to remove the leaf early? My logic behind this is that since the plant is overloaded with nutes, by removing the damaged leaves, you're 1) removing a very small amount of excess nutes, and 2) ideally this would encourage new growth - work on new leaves instead of keeping the damaged one alive.

If it's encouraging new growth, wouldn't this help the plant to use up more of the excess nutes (especially if it's N that's overdone - which seems common)?

Although, on the other hand, removing a leaf removes potential energy (more than it's taking to try and keep the damaged leaf alive?) which hurts it's new-growth potential, right?