Lower growth and leaves dying off

Been having some major issues with yellowing of lower growth.

Stage: Veg, 2 months from clone.
Medium: Coco Coir 70%, Perlite 30%
Lights: (4) 2 tube 4 foot long T5 lights
Nutes: I was using Floranova bloom 1 teaspoon per gallon, 2 weeks ago switched to 2 part General Hydroponics lucas formula with epson salt.
Water: R/0 0 ppms
Ph probe: Blue Lap pH pen and ppm meter.\
Fans: I have 1 box fan and 1 oscillating. Room door is open mostly to allow air flow.
Humidifiers: 2 humidifiers
Temps: 73-81 (min and max) mainly at 77 and humidity is always 45-65.
Pot size: 3 gallon
ppms: 780
pH:5.8
Species: Afghan Free seeds,White Widow,Royal Queens Critical, White Rhino, Dr. Kripplings Incredible Bulk.

Okay so to start, I started to get Fungus Gnats in my flower room. I used sticky paper, Mosquito bits, and a layer of sand to combat the issue. It was late in flowering but it helped a lot. Sadly those fuckers moved to my veg room. I did the same thing. Except this time I added a little EWC to the top of the pots. Well its been some time and the gnat problem seems to have pretty much gone away. During my war against the pesky little fuckers, I noticed that the lower leaves and branches started yellowing and dying off, but I did not know if the yellowing was because of the Gnats or a nute deficiency. A few days go by and the Yellowing continues. I upped the Lucas formula to double the amount for the past week in order to try to combat this. Still lots of leaves falling off (I can shake the plants and the floor surrounding will be covered). I just changed the nutes to the 3 part General Hydroponics nutes on Wednesday thinking different nutes may help. The lucas formula I had been using had a ppms reading of around 700-800. The double amount was at 1400 ppms. I was worried but i upped it to 2000 ppms. Extremely high for anything i have grown before. I am using epsom salt or cal/mag i alternate. I am not having the same issues with all the plants mainly the Afghan. I have 4 in Coco and 1 in a 5 gallon bubble bucket. The one in the 5 gallon bubble bucket is having no issue at all and is massive.The White Widow looks amazing, the rhinos are much younger and seem to have a little yellowing going on.

Today I flushed 3 gallons of water and 3 tsp of Floraclean and then watered with a bottle of H2O2 mixed with 4 gallons of water.

I have a younger White Rhino that is just starting to show signs of yellowing with brown/grey tips on the lower leaves. See below:


My Afghans:


Monster Cropped Critical with no issues:


Hydro Afghan with no issues:

plants are looking super healthy, no worries buddy. The lowers are not getting enough lights, not a big deal... you can pull them off as they turn yellow to increase airflow.
if you have time you should clean the bottoms ... anything that is underdevelop and pale will just grow useless buds!

I appreciate that bro. Just gonna go trim all lower veg right now and start back on a regular feeding cycle then.

Are those Afghani freebies from Herbies?

@Corso312 Yes they are.

I'm growing 3 now n hate em, real dark green n droopy with a slight claw n I've fed em once..they are 10 days in from 12-12 and last plant to show sex.. Was kinda hoping they were males.

I have grown 3 fully and have the mother in flower right now I have not enjoyed the smoke hoping to do better. What medium do you use? What nutes and ppms? If you dont mind me asking

They been in ffof for like 8 weeks, got nothing but rain water... Bout 1\3 of the size of my other freebies ( delicious cheese candy) fed em once at reg strength jacks classic 20-20-20 ... I read a few reviews about the Afghanis a couple months ago and nothing was positive.

Corso312 said:

I'm growing 3 now n hate em, real dark green n droopy with a slight claw n I've fed em once..they are 10 days in from 12-12 and last plant to show sex.. Was kinda hoping they were males.

Click to expand...

I threw one out a few months ago. She just would not flower. 3 weeks after the flip she didn't have 10-12 preflowers.

Were yours dark green n look like nitrogen toxicity with almost no food?

They sure were and had a mutated leaf structure. I even tried 10/14 to get her flowering but she just wouldn't flower. I will see if I can find a picture of those leafs.

Same here on the color and Nitrogen Toxicity. I have an Afghan in flower atm. I can take some pictures and post of her.

Whatever the reason for leaves to yellow and fall off on the older levels shows a nitrogen deficiency. Problems with uptake perhaps? But I would not give any high dose of nitrogen this late. A taste yes.

Corso312 said:

Were yours dark green n look like nitrogen toxicity with almost no food?

Click to expand...

Hey check these Afghan freebies same thing its driving me nuts I washed the roots and re potted in weaker soil still nothing only the Afghans.. Another day or two and then getting rid of them

I tossed mine outside to die, its like 11 degrees here...worst strain I can remember growing.. It wasn't going to yield shit and take way too long.. I got tired of looking at em..my garden is so much prettier without those mongoloids in there.

I'm gonna do some Bill Nye the science guy on them I have this product called rootblast its a root stimulant loaded with micros it says not to mix with water so of course I mixed it with water and floral fed them, I found some of my grandpa's old organic gardening books and farmers Almanacs and they talk about using peroxide diluted 3℅ =1 cup per gallon and also baking soda the sodium bicarbonate is supposed to do something, gonna find out what lol, trying to make room for the solo cup challenge.

The breeder of that dogshit "Afghani" strain should be marched through public and publicly shamed like Cersai Lannister from game of thrones.