help to solve problem

[GreenGardener]

ok im first timer at week 6 and a half with my fast bud girlscout cookies, growing in soil with a 600w hps in a tent with a 5inch extractor
about week 4 I gave my plants a little bit of nute burn probably from overwatering the last week iv had a little bit of yellowing mainly since I switched from grow to bloom nutes I was advised to try seaweed, calmag and then malasses but nothing seems to be working, I'm ph'ing between 6.3 and 6.5 and I water until I get run off but I'm not sure if the yellowing is getting worse or just not going

Help would be really appreciated, pics included

 

[GoAuto6]

Thanks molasses you used, was it unsulfered?

 

[GreenGardener]

Thanks molasses you used, was it unsulfered?

I think so I used bud candy . ive been on a 24/0 cycle ive changed to 20/4 today do you think maybe I was stressing it with too much light ?

 

[GoAuto6]

What nutrient line are you using?

 

[MickJ]

What nutes are you using? Mine did similar so gave them a 1/4 dose of grow with bloom as I transitioned. They seemed to bounce back. I'm using old timer organic.

Sent from my comfy chair. Link to my grows.
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"https://www.autoflower.org/index.php?threads/63634/"

 

[GreenGardener]

samurai terra bloom ,il give it a go cant hurt can it

 

[BlackBetty]

Cal-mag
Tried those nutes myself and always had to add cal-mag, 6ml per gallon every feed.

 

[Waira]

-- they look hard up for P and K, bloom nutes basically,.. when did you switch? Might have been late, hence the shortage,... P can be locked out by overly acidic in-pot pH as well,.. do you adjust your nutes before adding in? How often do you feed? I need NPK#'s on the feeds too,.... Checking in-pot pH is best done with a good soil pH probe, like the Accurate 8, otherwise it's the sucky run-off testing method,.. in a pinch that can be done to get a ball park estimate at least,... even a straight water-only run-off test (as opposed to the improved method we have in the section about this one) can offer a clue,... if it comes out in the 5's pH, even if that not an accurate pH, then for sure it's too acidic in there regardless and needs to be corrected first!

 

[GreenGardener]

-- they look hard up for P and K, bloom nutes basically,.. when did you switch? Might have been late, hence the shortage,... P can be locked out by overly acidic in-pot pH as well,.. do you adjust your nutes before adding in? How often do you feed? I need NPK#'s on the feeds too,.... Checking in-pot pH is best done with a good soil pH probe, like the Accurate 8, otherwise it's the sucky run-off testing method,.. in a pinch that can be done to get a ball park estimate at least,... even a straight water-only run-off test (as opposed to the improved method we have in the section about this one) can offer a clue,... if it comes out in the 5's pH, even if that not an accurate pH, then for sure it's too acidic in there regardless and needs to be corrected first!

I switched at just before 6 weeks, water every 3-4 days , and yeah I do the shitty test run off ph method, when I water I add nutes cal mag and now bud candy in a bottle correct ph using up/down then water till run off ,

If I test run off on my next water and it’s off how do I correct ph as I always add 6.3/6.5 , do I add say 7 if soil is for example 5.5 to get a 6.5 reading ??? Im a noob a can only go by what I read online and everyone contradicts each other.

 

[GreenGardener]

-- they look hard up for P and K, bloom nutes basically,.. when did you switch? Might have been late, hence the shortage,... P can be locked out by overly acidic in-pot pH as well,.. do you adjust your nutes before adding in? How often do you feed? I need NPK#'s on the feeds too,.... Checking in-pot pH is best done with a good soil pH probe, like the Accurate 8, otherwise it's the sucky run-off testing method,.. in a pinch that can be done to get a ball park estimate at least,... even a straight water-only run-off test (as opposed to the improved method we have in the section about this one) can offer a clue,... if it comes out in the 5's pH, even if that not an accurate pH, then for sure it's too acidic in there regardless and needs to be corrected first!

GROW: (6 - 2 - 4) - BLOOM: (4 - 2 - 6)