This is starting to scare me a bit.

This is becoming worrisome. Most of my fan leaves are turning yellow or have yellowed and fallen off. The colas and sugar leaves look fine. I have an auto going under same exact conditions and it looks great.

CBD Blue Shark Photo
25 days into flower
Fox Farms with perlite added
3 gallon pot
Tent 5 ft high 40' wide 30' deep
150 w HPS 10 inches above canopy.
Temps 75-81
Filtered tap water
12/12 light
fan on tent floor blowing upwards towards light to push heat higher. (Maybe the fan is drying out the leaves)

Feedings:
once per week GH Floronova Bloom
1 tsp Molasses
shake of Great White Mycos

Last feeding I added 1 tsp Cal Mag in case this was cal mag deficiency.

Could be stress from not enough water. This plant dries out very fast. I was used to watering every 3 days or so, but may have to step it up to every other day.

I've got way too much invested in this plant to let her fail. Any tips would be greatly appreciated. Thx

Many of the leaves look like this one.

From this chart it looks like Nitrogen Deficiency. GH recommends adding 1 ml veg to 5ml bloom. I haven't been adding the veg. Maybe this is the issue..

I've always been afraid of overfeeding so I have mostly fed once per week., but maybe I should try Feeding twice per week with the veg added in with plain waterings in between.

Needs more nitrogen by the looks of her.
Good luck grower.

I would say N def. as well. the only way you can stress a plant from underwater is if it shrivles up. I am of the opionion less is more with water. I use ten gallong pots and they get 3 quarts 2wice a week.

You say you're feeding once per week. How often are you watering?

feed on sundays. then usually need pure water again thursday night or friday AM. 2-3 times for each cycle, (veg and flower) i use sledgehammer or equivelant root flush/anti salt buildup product which goes in with the pure water.

green_machine_two9er said:

feed on sundays. then usually need pure water again thursday night or friday AM. 2-3 times for each cycle, (veg and flower) i use sledgehammer or equivelant root flush/anti salt buildup product which goes in with the pure water.

Click to expand...

Why don't you try feeding with each watering and stop using the anti-buildup stuff for a couple of weeks and see how they look?
As long as you are watering enough to get good run-off then you won't really need to flush all that often.

Hot Diggity Sog said:

Why don't you try feeding with each watering and stop using the anti-buildup stuff for a couple of weeks and see how they look?
As long as you are watering enough to get good run-off then you won't really need to flush all that often.

Click to expand...

hot Diggity,
i use the sledgehammer no more than once a month, and only in my hot soils. my main prioity is my oganic mixes. check out my journel tell me what you think.

Damn dude...you're doing some work! If I get some cola's that are even 1/2 as good as the one's you're getting I will be pleased.
I don't see any deficiencies so you are doing great. Maybe this one plant is just hungrier than others?

Hot Diggity Sog said:

Damn dude...you're doing some work! If I get some cola's that are even 1/2 as good as the one's you're getting I will be pleased.
I don't see any deficiencies so you are doing great. Maybe this one plant is just hungrier than others?

Click to expand...

that one isnt mine but thanks man! that purple paralysis is looking like its gunna live up to the hype.

Seeing as it's mostly the lower part of the plant that has been affected, have you considered Lollipopping it? What I mean is cut off like the bottom 1/4th of the plant. Bottom leaves don't get as much light as the top ones and are really just sucking up energy (and clearly Nitrogen in your case) from the plant and end up dying. It should resault in a better 3/4th top of the plant.

Shes a heavy eater

Hot Diggity Sog said:

You say you're feeding once per week. How often are you watering?

Click to expand...

Normally feeding once per week and watering twice.. I wait for the pots to get light and I see the leaves beginning to droop a bit.

Lupiuz said:

Seeing as it's mostly the lower part of the plant that has been affected, have you considered Lollipopping it? What I mean is cut off like the bottom 1/4th of the plant. Bottom leaves don't get as much light as the top ones and are really just sucking up energy (and clearly Nitrogen in your case) from the plant and end up dying. It should resault in a better 3/4th top of the plant.

Click to expand...

yes, I could cut away more of the lower section. There's not a whole lot down there right now, but i could take off more.

Thx for the input everyone. I gave her some veg and will continue to add veg to the bloom until the final few weeks.

Thx again.

When waiting for or seeing the leaves droop I've noticed ALOT more yellowing. Especially IF using soil less. I would feed every watering with runoff now because it looks like soil is pretty much depleted.

furnz said:

When waiting for or seeing the leaves droop I've noticed ALOT more yellowing. Especially IF using soil less. I would feed every watering with runoff now because it looks like soil is pretty much depleted.

Click to expand...

Do I run the risk of over fertilizing if I feed every time I water from this point on?

I wouldn't think so no as long as you get a good amount of runoff each time.
Right now you run the risk of loosing all your leaves before shes close to finishing by the looks of it .
Looking at the tips it looks like a little nute burnt while the lower half looks N deficient.
You might need to change the ratio of your nutes and maybe use a little grow and little less bloom.

sunny747 said:

Do I run the risk of over fertilizing if I feed every time I water from this point on?

Click to expand...

just a thought...
fox farm soil you said. are you in ocean forrest? i would check runoff for ph and tds. to check ph flush with pure water at 7.0 check runoff. if it comes out under 5.5 that means your 1.5 away from nuetral 7. than next feed adjust to get to the sweet spot. 6.0-6.5 for soil. the lady could have all the nutes in the world and if ph is low it will lockout and stop feeding. many times we think deficency right away, add more nutes which may be causeing the lockout to begin with.

tds is easy. test runoff. i would never go above 1200 max during mid flower. expecially if in ocean forrest. very hot soil to being with.

i wouldtrim the shit out of the bottum, flush really good, figure out your numbers on ph and tds ppm.
good luck!

Yeah, forgot to say good luck man.