Is this nutrient burn? Help needed

Hello!

Had some ups and downs and am wondering if I got overzealous with feeding. Is this nutrient burn? Should I flush?

I topped about 4 days ago.

I initially thought this was a mag deficiency, which it probably was based on me underfeeding with cal mag (about 1/4 of recommended dosage spread over multiple waterings, so really very little). I have since addressed the mag issue/am addressing.

Appreciate the help!

Could be mag? What are your #s looking like, in/out?

Hello,

In, I’ve probably got 1.25-1.5 tsp of this to date for the grow, shared between all the plants: https://growgreenmi.com/calimagic-6-gal?gclid=EAIaIQobChMI7-bjrYLE7QIVDZezCh1E2gqZEAQYAyABEgISt_D_BwE

I’m guessing that’s low, but I’m working on slowly introducing more.

I don’t have a PPM reader.

Any other thoughts?

You really need one along with a digital PH meter and calibration/storage solution. Hard to do an indoor grow without quality instruments.

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You from Michigan too? Lol good amount of us here.

Welcome to the forum

Thaaaanks. I’m actually from Florida.

Updated photo. Foliar fed cal/mag about a week ago. Not sure if what remained was resolved. Not sure if it’s not nute burn. Expertise needed – too stupid to solve by myself.

I’ll say this again. You want to know what’s going on without just guessing, you need to acquire and use these meters.

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@myfriendis410 does this one look like it’ll work?

https://www.amazon.com/Accurate-HoneForest-Temperature-0-9990ppm-Aquariums/dp/B073713G5F/?tag=greenrel-20

Yes, no need to spend a ton of money on a TDS meter. Just make sure you get one that reads in the 500 scale (NACL) as that is pretty much the standard here in the 'States.

Spend your money on a decent PH meter. This one is pretty good:

https://www.amazon.com/Apera-Instruments-AI209-Waterproof-Accuracy/dp/B01ENFOHN8/?tag=greenrel-20

When you get your meters, tag me using the @ sign and I’ll give you a quick tutorial on how best to use to determine your problem.

thanks! i’ve got a ph meter and a couple testing kits already. just need a turbidity one.

will report back with PPM readings.

Do a runoff PH and TDS: that will tell you best whether you have a nutrient excess. PH the runoff to make sure there are no issues there either.

@Myfriendis410

numbers are back. for runoff for the sad plant (others are doing great, I’d say):

water ph: 7.1

  • ph: 6.2-6.11
  • TDS: 56#-52# (forgot the exact numbers)

I haven’t fed the sad plant for a couple weeks, so these numbers were likely proportionally higher back then.

This number is more important than PH: I can’t do anything with that, sorry. Tag me when you get the data needed.

It was 569 at most and 520 at least. @Myfriendis410

That’s a low number. Based on that I’d say the plants are hungry.