How to fix lockout?

[Dreminem169]

what’s causing this lock out and how do I fix it?
Everything was fine until I added buildasoil craft blend @ 2.5TBSP on 2/11 because i was seeing a slow decline. The decline continued so on 2/13 I fed .15 dose of fox farms big bloom & grow big pH 6.4 & EC=.67 which made things worse. Do I need to hit them with a higher dose of ff trio, or back off?
Medium/grow method: ffof in 2gal fabric pot

Feed: and supplements used: top dressed 2.5TBSP buildasoil craft blend & ff trio

water source: tap 7.8

PH in the root zone: haven’t checked

Strain/age: grape god 25days

light used: mars hydro tsw2000
Climate: 23C 47%

2/11/21

Top Dressed craft blend & ewc

2/13/21
Fed .15 dose of Big Bloom & grow big
Before light defoliation

After defoliation

today

 

[Arthur]

So your using fox farms ocean forest, +buildasoil craft blend+ fox farms trio?

Way too much food! OF is pretty hot for autos to start off with, and with 2 gallons, and at just past 3 weeks, I wouldn't be feeding anything at this point with that soil.

As to fixes, hopefully @Mañ'O'Green will pop in and get you pointed, but I'd recommend nothing but plain pH'ed water at this point. And ask for medium pH and ppm.

 

[Dreminem169]

So your using fox farms ocean forest, +buildasoil craft blend+ fox farms trio?

Way too much food! OF is pretty hot for autos to start off with, and with 2 gallons, and at just past 3 weeks, I wouldn't be feeding anything at this point with that soil.

As to fixes, hopefully @Mañ'O'Green will pop in and get you pointed, but I'd recommend nothing but plain pH'ed water at this point. And ask for medium pH and ppm.

No my plan was to go all organic but I saw a deficiency so I wanted to correct it while the top dress took affect. Also, I did not have any problems with OF being too hot to this particular plant. In fact the reason I top Dressed was because it was starting to fade

 

[Arthur]

If you were getting a deficiency popping up at 25 days in that soil, it's not because it didn't have enough feed in it... more likely a pH issue.
I'd run a slurry test to figure out where I was in the #s, so I could figure out which way to go.

 

[Bill.de.Cat]

Yeah, when I saw that tap water ph number, that's what popped into my head. I aimed for 6.0 on my 1st run back and only used a pool ph test kit.

 

[Dreminem169]

Yeah, when I saw that tap water ph number, that's what popped into my head. I aimed for 6.0 on my 1st run back and only used a pool ph test kit.

I’m in soil pH has been no issue... the only time I pH’ed was when I added the nutes

 

[Dreminem169]

If you were getting a deficiency popping up at 25 days in that soil, it's not because it didn't have enough feed in it... more likely a pH issue.
I'd run a slurry test to figure out where I was in the #s, so I could figure out which way to go.

Can you remind me how to do a slurry test? Aren’t there a couple different types of slurry tests?

 

[Arthur]

Can you remind me how to do a slurry test? Aren’t there a couple different types of slurry tests?

I've always used = amounts of soil and water (ro or dist) mix, let set about the time it takes water to get thru the pot, and test. Careful with a pH probe, glass bulbs and perlite don't mix well! So just be careful.
With your water pH being so high, am wondering if you have high limestone content that might be dragging the soil pH along as it builds up. Should see mid 6s.

 

[Mañ'O'Green]

There is plenty of lime in the OF so PH is not likely a problem in the pot. It just has too much everything. Just water with PHed 6.3 water for the next week or 10 days and see what happens. Flushing just makes things worse in precharged soils.

Get a good soil probe like the Accurate 8 or Blue Lab to check the PH in the root zone.

 

[Dreminem169]

not sure how to read this, but this is my water report