A little help on the cause...

So, I've been looking at the nute def charts and also weeding my way through some of the threads here and other places and don't really know nor can I find the cause of this.

Background info:
THSeeds Ultrasour
Girl is in 4th week of flower
Medium is BioBizz All-Mix with 1" layer of clay tablets at the bottom and garden lime (99% dolomite lime) mixed in.
Currently on weekly feeding regimen of 1mL/L BioBizz Grow, 2.5ml/L Bloom and 2mL/L TopMaxx with 1/2 tbsp Epsom Salts
Lights are Led: 1 65W HansPanel and 2 32W Plant Phototonics (used as side lighting)

Here's a photo of some of the leaves with the problems showing:



do you think it's just a case of pushing maybe the N too much during flower or is there maybe some deficiency going on?

any help to nip this in the bud would be appreciated!

I must say it's been limited and not exactly on every leaf...my main concern is that it is on both older and newer fan leaves...i was told to simply flush with like 3ml/L Bloom until I see run-off...should I do this or simply let it be? I've let things slide in the past only to be screwed in the final stages of flowering which is why I'm asking now...anyone ever had this happen to them?

fanofpanic said:

I must say it's been limited and not exactly on every leaf...my main concern is that it is on both older and newer fan leaves...i was told to simply flush with like 3ml/L Bloom until I see run-off...should I do this or simply let it be? I've let things slide in the past only to be screwed in the final stages of flowering which is why I'm asking now...anyone ever had this happen to them?

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when you flush a plant you use water only and 3 times the amount of soil its in. So if their in 5gal buckets then you would use 15gal of just water. need a pic of whole plant but it looks like old nut burn.

You mentioned that you use Epsom salt and Dolomite in soil . That maybe an issue , here's why.:

The problem with dolomite lime? It has a calcium to magnesium ratio of 2:1. That’s way too much magnesium for most soils. Magnesium is certainly an essential mineral. Too much of it, however, causes many problems, compaction being one of the most common, but also pest problems. It helps buffer the soil. I would dump the Epsom .

Looks like slight nute burn to me, just back off a little bit.

I think I'll stick with the status quo, maybe not adding epsom salts this time to the feeding and just feeding with bloom and topmax only...thank you for all your help...if I have any problems, I'll post in this thread!

mike4c4 said:

when you flush a plant you use water only and 3 times the amount of soil its in. So if their in 5gal buckets then you would use 15gal of just water. need a pic of whole plant but it looks like old nut burn.

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Here's two photos of the entire girl....last night she was already in darkness so I couldn't get a photo of her:

fanofpanic said:

Here's two photos of the entire girl....last night she was already in darkness so I couldn't get a photo of her:

View attachment 3391298 View attachment 3391299

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How long in flower? Thay look good. I wouldnt change a thing. yellowing near the end of flowering is normal as the plant uses leftover N stored in the leaves.

mike4c4 said:

How long in flower? Thay look good. I wouldnt change a thing. yellowing near the end of flowering is normal as the plant uses leftover N stored in the leaves.

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We're going into the 4th week of flower (since she started showing pistils) and about 5 weeks from the switch to 12/12

fanofpanic said:

We're going into the 4th week of flower (since she started showing pistils) and about 5 weeks from the switch to 12/12

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yea they look fine.