Help! plant seems sick in flower

Posted this earlier and didn’t get a response. Feels like this is deteriorating rapidly, and everything is just weird.

Ebb and flow Indica hybrid auto
6th week of flower
Ghe nutrients
Ec 1065
83-84f during the day 78 at night
Rh 42 average

So over the last 4 days or so a few things have been happening

Severely burnt tips on many leaves and some on the edges
Chlorosis in pretty much all fan leaves worse on lower leaves

Bud growth seems to have stopped the last few days
The plant used to smell one floor down. Currently you can barely smell anything sticking your nose in the tent.

Tried a few things so far. First I started dropping the ec thinking it might be nutrient burn and the chlorosis was related to the plant being late in the cycle. At that point the chlorosis was lower fan leaves.

Yesterday morning I changed the reservoir and dropped the ec to .965

Today I calibrated my ph meter and found it was about 0.4 too high so I thought I had been running ph of about 5.9 when it was actually probably 5.5 or 5.6. So I adjusted and think I am at an accurate 6.2.

Another note is took an ec at lights out today and got a 1.065. After the lights came on and after a few short flood cycles I took a reading of 1.265 so it had shot up drastically while having consumed maybe 1/16th of the reservoir. That’s another note. A week ago she was drinking a gallon a day but is now at less than a half gallon.


Pics below, but it’s just a weird mix of symptoms and feel like something that was humming along 5 days ago is going off the rails, and I’m out of ideas. It may be something I have already done will help, but I’m losing precious flowering time, and worried about a crappy end product.

Any ideas about what might be happening are really appreciated.

So first off, calm down. Your right when you say you may have fixed it already. You won't know for a few days. The damaged leaves won't heal so you'll just need to see how she reacts.

It's been a while since I grew hydro so hopefully you get some more opinions but I don't think it was your pH. 5.5 is pretty low but within the acceptable range if I recall. Just don't overreact and change too many things all at once.

iron def? 5.5 ph is fine

Gentlemencorpse said:

So first off, calm down. Your right when you say you may have fixed it already. You won't know for a few days. The damaged leaves won't heal so you'll just need to see how she reacts.

It's been a while since I grew hydro so hopefully you get some more opinions but I don't think it was your pH. 5.5 is pretty low but within the acceptable range if I recall. Just don't overreact and change too many things all at once.

Click to expand...

Thanks appreciate that. Felt like the ph issue might have been a bit of a stretch, but I was looking for anything different, and that was at least semi-plausible. I’m concerned, but not trying anything radical. Have some new ideas, but I’ll definitely wait a day or two.

Also wondering if I could be rootbound or given that big ec spike if I might have salt buildup in the hydroton that a flush would help.

Anyway just looking for anything somebody more experienced might recognize. Thanks again.

steve870 said:

iron def? 5.5 ph is fine

Click to expand...

Isn’t iron immobile though? I would have thought it would be showing up on the newer leaves mostly. The ones with chlorosis are all fan leaves, but the problem is worse on the older ones.

Not related to your issue, but dope user name by the way.

Gentlemencorpse said:

Not related to your issue, but dope user name by the way.

Click to expand...

Thanks. Felt it would be nicely inconspicuous

Had a moment where I considered FordPrefect42x10 but seemed a bit too much.

FWIW I think I might have solved this. Decided the big ec spike might have been salt build up. Did a full flush with sledge hammer and replaced the reservoir with clean ph’d water yesterday morning and started easing the nutes back in this morning at .658 ec this morning.

Burn stopped progressing overnight and what’s that I noticed on the way upstairs? Why it’s the smell of fresh growing weed Also took another ec reading after the first couple floods today and ec dropped from 658 to 621 so it seems to be taking up nutrients rather then bleeding them back into the reservoir.

Thanks for the comments guys.