deficiency in autoflower

[bamdamhigh]

Hello there,

This is my second grow, and first in Coco

I have these 3 plants from Fastbuds, the 2 at the back in Autopot tray, having the same feed from the reservoir but as you can see one of them looks a bit behind with some symptoms that I don't know!

Just to mention I recently flushed both pots in autopot with 5l of ph balanced water and I put it back in autpot.
PH of runoff was 7, and EC was around 1700.
I'm feeding only ph perfect trio from advanced nutrients.


Any help would be appreciated.

 

[Buzzard]

What is the ph and ec of your feed, Runoff numbers aren't a great indicator. What you are putting in is more important. In coco I try to have a ph of 5.8 and a ppm around 7-800 for the nutrients. Autos are a little more sensitive than photos and require a bit lower ppms in my experience.

 

[bamdamhigh]

700-800 for autoflowers or photoperiodic?

 

[Buzzard]

700-800 for autoflowers or photoperiodic?

autoflowers.......photos can use quite a bit more. I feed photos up to 1200 ppm.

 

[bamdamhigh]

my ppm is around 920 now! Not that far i think?
Also the other two plants look like they’re taking it well

 

[KingRatt]

Watch the levels of what youre putting in. Keep ppm under 1000 and ph at 5.8 going in and you should be fine during flower. Monitor your res if youre reusing water and keep it in check

 

[Buzzard]

my ppm is around 920 now! Not that far i think?
Also the other two plants look like they’re taking it well

The plants don't look bad. They are all individuals so one might just be a little behind. I have used those nutrients in the past and they are quite decent although a bit pricey. Good Luck with the grow.

 

[Lil Dab]

I recently flushed both pots in autopot with 5l of ph balanced water and I put it back in autpot.

You should feed and flush with nutrients in coco when I flush I use 50-60% nutrient strength.

 

[BII]

You cite using "ph balanced water," which could be a mistake right there.

Using pH Perfect base nutes (with low ppm/EC, ideally RO, water) you should not be adjusting the pH! That is the whole idea of ph Perfect, which works best with zero/low ppm/EC/salts water. Adjusting the pH just means you are adding salts that are both unneeded and can only mess up the "Perfect" pH balancing of the base nutes. If your water has a high ppm/EC, you probably should not be using pH Perfect nutes.
[Check with Advanced Nutrients, which never tells you to adjust pH, search AFN and/or other sources. With well-chelated nutes, including pH Perfect and many finding MegaCrop works too, using inert media (here coco) If you start with good water and minimize adding salt supplements you don't need to and should not be adjusting pH either before or after mixing].

 

[bamdamhigh]

You cite using "ph balanced water," which could be a mistake right there.

Using pH Perfect base nutes (with low ppm/EC, ideally RO, water) you should not be adjusting the pH! That is the whole idea of ph Perfect, which works best with zero/low ppm/EC/salts water. Adjusting the pH just means you are adding salts that are both unneeded and can only mess up the "Perfect" pH balancing of the base nutes. If your water has a high ppm/EC, you probably should not be using pH Perfect nutes.
[Check with Advanced Nutrients, which never tells you to adjust pH, search AFN and/or other sources. With well-chelated nutes, including pH Perfect and many finding MegaCrop works too, using inert media (here coco) If you start with good water and minimize adding salt supplements you don't need to and should not be adjusting pH either before or after mixing].

@BII do you have better nutes options that are available in the EU and work better with hard water in the reservoir?