Ok. Here is the fox farms feed schedule.
You have not come close to any of the schedule. I do not see any mention on your post of flushing your grow but it sure looks like burn.
Do you know how to test the PH and EC of your grow? You are going to have to eliminate some stuff first.
I do not think it is lights as it's the whole plant. Just might be real hot in the pot.

The biggest mistake a grower makes at this point is making a change with no testing. Verify a hot pot of soil with a slurry test and make adjustments. If you are close to a dry cycle you can water to test and if it shows high do the flush at the same time.
Good luck

What you're seeing are signs of a potassium issue. It's likely abundant in the food and soil but being blocked from the plant by other factors. The most likely culprits would be:

Excess Ca, Mg or both
Salt buildup from over feeding or poor water source
pH is not in a good range
High humidity/low transpiration rate
Over watered/saturated root zone

If they were my plants I would go down that list and make sure everything is dialed in before feeding it anything. NPK plus Ca, Mg and Fe are all interconnected in complicated ways. If you push or pull on one it can have a domino effect on the rest.

That's a pretty wild feeding schedule. I use fox farms as well, and it's not been a problem so far. Feed once a week 1/2 dose on bottle for photos and 1/3-1/4 dose for autos. Obviously add in the blooming feeds go when it's time for them and bush doctor calmag every other week in flower.

I would 1000% say try the sledgehammer product if you can in this situation.

JIMKSI64 said:

Ok. Here is the fox farms feed schedule.

Feeding Schedules - FoxFarm Soil & Fertilizer Company

Choose the feeding schedule that’s right for your growing needs. English (Imperial) Espanol (Metric) English & Espanol (Imperial and Metric) Tiếng Việt (METRIC) Hmoob (Metric)

foxfarm.com

You have not come close to any of the schedule. I do not see any mention on your post of flushing your grow but it sure looks like burn.
Do you know how to test the PH and EC of your grow? You are going to have to eliminate some stuff first.
I do not think it is lights as it's the whole plant. Just might be real hot in the pot.

The biggest mistake a grower makes at this point is making a change with no testing. Verify a hot pot of soil with a slurry test and make adjustments. If you are close to a dry cycle you can water to test and if it shows high do the flush at the same time.

Bush Doctor® SledgeHammer® - FoxFarm Soil & Fertilizer Company

Bush Doctor® SledgeHammer® is a unique rinse formula designed to remove excess fertilizer build up by encouraging water movement through soil and soilless media. High fertilizer use can compromise plant growth over time due to concentrated mineral salt deposits.

foxfarm.com

Good luck

Click to expand...

Hahahah yeah I know I was no where near the schedule. I am way way behind the schedule.

I do have a ph meter and calibrate each use. Been keeping my water and feedings at 6.7-6.9

I’m outdoors. I have been battling the heat. I’m in central texas. I have for sure have gotten the pot to dry a few times.

No I have never flushed I did not even start feedings until 3 weeks ago.

My other girl that I have been giving the same stuff posted some imgaes of that one.

Grownsince95 said:

What you're seeing are signs of a potassium issue. It's likely abundant in the food and soil but being blocked from the plant by other factors. The most likely culprits would be:

Excess Ca, Mg or both
Salt buildup from over feeding or poor water source
pH is not in a good range
High humidity/low transpiration rate
Over watered/saturated root zone

If they were my plants I would go down that list and make sure everything is dialed in before feeding it anything. NPK plus Ca, Mg and Fe are all interconnected in complicated ways. If you push or pull on one it can have a domino effect on the rest.

Click to expand...

i was seeing Potassium Deficiency as well. The “burn” really set in after my last feeding which was with grow big.

So the plan I have in my head… Flush using sledgehammer. Give her a few days to dry out and start and try again at low doses.

I have Feed Epsom Salt Twice
I have not given any Cal Mag

I have been phing everything 6.6-6.9

With the heat and my work schedule for sure has been some over drying days.

neneboob said:

That's a pretty wild feeding schedule. I use fox farms as well, and it's not been a problem so far. Feed once a week 1/2 dose on bottle for photos and 1/3-1/4 dose for autos. Obviously add in the blooming feeds go when it's time for them and bush doctor calmag every other week in flower.

I would 1000% say try the sledgehammer product if you can in this situation.

Click to expand...

I wouldn’t recommend it :-) I made it up as I went.

I am finally gathering an understanding on how to properly use them.