Indoor Lime/pale upper leaves during flower

[IdeVend]

hi!

I have some wired lime/pale colored upper leaves since flower or maybe since the stretch before flower I’m not sure, but it wasn’t present in veg! Only the upper third is affected and there are no visible drawbacks or problems yet. It flowers great and no dying leaves or buds.
I’m suspecting Iron deficiency or maybe nitrogen deficiency, this is my third plant I’m not experienced!
It had a significant boost before flower adding 20 cm in little over a week maybe that could be the reason?

here are my grow details:

Breed: Dutch Passion Auto Daiquiri Lime
Age: 55 days, 17 days in to flower
Light: 100w led (for a 60x60 tent), 20-4 schedule
Soil: plagron Lightmix
Nutrients: plagron Boom (at around 75% of te recommend strength), Advanced Nutrients Sensi CAL-MAG Xtra 1 ml/l
Ph: 6.2-6.6

and some pictures:

Thanks!

 

[Bill.de.Cat]

Water source and quality? All my problems in grows seem to have stemmed from that, since going to distilled / RO have had very few problems.

 

[Big Sul]

In addition to water source/quality, what ppm’s are you feeding them?

 

[IdeVend]

Water source and quality? All my problems in grows seem to have stemmed from that, since going to distilled / RO have had very few problems.

I’m using regular tap water, and based on the report from the water provider it contains around 20 µg/l of iron.
If I start to use distilled water, what additives do you recommend? Is there a complete solution?

thanks!

 

[IdeVend]

In addition to water source/quality, what ppm’s are you feeding them?

I have no access yet to a device that can measure that! Just purchased a good ph device, ppm measuring device is on my list too!

 

[Bill.de.Cat]

I’m using regular tap water, and based on the report from the water provider it contains around 20 µg/l of iron.
If I start to use distilled water, what additives do you recommend? Is there a complete solution?

thanks!

Distilled / RO water is about as nothing in it as we can get.....so whatever you add is basically all they get so your not chasing your tail trying to figure out what and why your grow is off kilter. That's how I found AFN, was online trying to figure out what was wrong with my first grow ( deep well on a limestone aquifer AND adding cal-mag, just the water alone was causing calcium lockout ). Most if not all nutrient lines are going to have everything you need already in it. There's a good section on nutrients so most real-world research has been done on them by our fellow growers here. Just gotta read and figure out what fits your style..
Personally I use happy frog soil cause it gets them through 4 or 5 weeks to the start of flower with only water, then I do bloom nutes.....wasn't too impressed with line, MegaCrop was good, but since switching to autopots I am trying AN's PH perfect line. It might take a few grows but you'll start to figure out what works for you for each stage and it'll be golden.
:smoking:

 

[Big Sul]

so You have no idea how much you are feeding them? I would say that is a problem.

 

[Bill.de.Cat]

I have no access yet to a device that can measure that! Just purchased a good ph device, ppm measuring device is on my list too!

No worries on that...I spent the money and bought a good one but still haven't used it.

 

[Bill.de.Cat]

so You have no idea how much you are feeding them? I would say that is a problem.

Everyone has their own way of doing things. Main thing is what works for them.

 

[Mañ'O'Green]

@IdeVend Welcome to AFNThat is not an Iron problem. There is almost a zero chance that the Plagron soil and Plagron Bloom would be short on iron. It is either PH or nutrient balance that is off. There is also a clue in the name of the strain "Dutch Passion Auto Daiquiri Lime " The use of lime in the name is because the plant has a tendency to be a limey color.

Why are you using Cal-Mag? It is not on the Plagron Feed schedule?

I think you should be using these nutrients in this schedule with the Light Mix soil?

Learn more about using balanced nutrients here:

Tutorial - A word on Nutrients

The proper use of “salt” based fertilizer to grow Auto Flowering Cannabis. Salts: Natural and man made any chemical compound formed from the reaction of an acid with a base, with all or part of the hydrogen of the acid replaced by a metal or other cation. Learning how to use salt based...

www.autoflower.org

I think you are short on Nitrogen There is not a lot in the light mix to start and bloom only nutrients may not have enough.