SPOTS!!!( Pictures)

Hello RIU,

I am in my 4th week of flower with my nirvana seeds northern lights . A couple days ago i noticed some spots on one of my plants and now its on two of them and appears to be getting worse.


They are on Technaflora's recipe for success feeding schedule+ a small dose of "magical" every water. I give them water ever other day and the PH is between 6.3-6.8, except the days when i give them nutes and its 6.1

I am growing in soil, fox farms ocean forest with about 20% perlite added.

They had gotten a little nute burn about 2 weeks ago so i flushed them with water and they apppeared to be fine.

Today i checked the PH of the runoff and it was 6.4 run off while giving the plant 6.8 ph water.

I use tap water that i let sit out atleats 24hours. (when i flushed i had run out of water so it was straight from the tap.



I do not see any bugs and i water with phed water with nutrients, so im pretty confused.

Any experienced advice is appreciated.

Thank you,

urabus2005

Have you checked the ppm of runoff?

My first thought was calcium deficiency looking at the first pik.

bassman999 said:

Have you checked the ppm of runoff?

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unfortunetly i dont have a ppm meter, only P.H

I run FFOF soil, and technaflora recipe for success nutes. I add 1 cup dolomite lime to my soil mix (every bag). after adding my tech nutes, my water always ph's to 6.5, each and every time for 3 harvests. not sure how your getting 6.1 ph after making a nute solution, unless your adding too much to your water. and x2 on a cal/mag deficiency. I get those spots occasionally, at least 1x in veg, never in flower. once I see them in veg (normally week 6-, then I do a veg nute watering. oh, and ive NEVER tested my PPM in run-off. my PPM out the tap is 103, my ph out the tap is 7.9, after 24hrs of bubbling its 8.3-8.6 depending on the temp of my water. im a basement grow, temps are 73* and 45% r/h year round.

why add magic-cal every watering? feed, water, water, feed, water, water, feed.

When flushing try use 25% strength mix meaning dilute your normal nutrient mix so it is only 25% as strong. When flushing with just tap or RO water sometimes plants will show signs of deficiencies. I wouldn't change anything too drastically yet the plant looks happy overall at this stage focus on the hairs more if they start turning Orange early that is a bad sign. If you take a nice looking green leaf and roll it between your fingers and it crumbles and falls apart almost as if it was dry that is an early indicator of a burn. If the problem continues to get worse msg me and we'll figure this out.

DemonTrich said:

my water always ph's to 6.5, each and every time for 3 harvests. not sure how your getting 6.1 ph after making a nute solution, unless your adding too much to your water.


and x2 on a cal/mag deficiency.


why add magic-cal every watering? feed, water, water, feed, water, water, feed.

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I am not sure, everytime i mix the solution up it brings my water to 6.1. Even if i add ph up stays at 6.1

i add the magic-cal every watering cause in early stages on veg i had a calcium deficiency and this solved it, guess i didnt wanna go back to that.

wouldnt the fact that i use magical every watering rule out that deficiency?

thank you so much for your help

You have a minor..very minor calcium deficieny. There is absolutely postively no doubt in my mind what so ever. Spots without yellowing = calcium def.

Up your calmag dosage by about 2-3ml a gallon. And then go out and by a PPM meter and a notebook. WHen you mix nutrients, yes, every god damn time you mix them.. write down the ppm of the water, base nutrients, calmag and any other addatives that you use. That way, you will know exactly how much of each nutrient you are giving you plants. When people talk about dialing in what a strain wants, this is what they are talking about.

Other hints:
-Watering every other day seems too often for soil. Let that shit dry out.
-Never flush with plain tap water.

Good luck.

legallyflying said:

You have a minor..very minor calcium deficieny. There is absolutely postively no doubt in my mind what so ever. Spots without yellowing = calcium def.

Up your calmag dosage by about 2-3ml a gallon. And then go out and by a PPM meter and a notebook. WHen you mix nutrients, yes, every god damn time you mix them.. write down the ppm of the water, base nutrients, calmag and any other addatives that you use. That way, you will know exactly how much of each nutrient you are giving you plants. When people talk about dialing in what a strain wants, this is what they are talking about.

Other hints:
-Watering every other day seems too often for soil. Let that shit dry out.
-Never flush with plain tap water.

Good luck.

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thank you!

BROBIE said:

My first thought was calcium deficiency looking at the first pik.

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legallyflying said:

You have a minor..very minor calcium deficieny. There is absolutely postively no doubt in my mind what so ever. Spots without yellowing = calcium def.

Up your calmag dosage by about 2-3ml a gallon. And then go out and by a PPM meter and a notebook. WHen you mix nutrients, yes, every god damn time you mix them.. write down the ppm of the water, base nutrients, calmag and any other addatives that you use. That way, you will know exactly how much of each nutrient you are giving you plants. When people talk about dialing in what a strain wants, this is what they are talking about.

Other hints:
-Watering every other day seems too often for soil. Let that shit dry out.
-Never flush with plain tap water.

Good luck.

Click to expand...

I guess I'm talking to a wall. I second the cal def