Going south overnight

[Nadnerb]

New grower growing a single ILGM Amnesia Haze Auto in Kind soil and OF water only, 5gal fabric pot, Budgetled 250 R-spec. Up until this morning I thought everything was going well but noticed some extremely yellow leaves. This literally happened over night. These leaves are older leaves and on the main cola stem and branches off of that stem. Also thinking buds aren't forming the way they should be meaning kinda spindly and sparse. Because it's kind soil I'm not watering to runoff because it's not recommended so I don't have any PPM readings. I have everything to switch to nutrient feeding if needed but would need to know if the Kind soil could be completely flush to the point that I could switch to nutrients? Or do I continue the way I am and try to correct the issues as they arise? I have calmat would that be helpful in this situation? Like I said I'm new to this and trying to figure things out. Thanks in advance. Here's pics.

5/14

Today 5/16

 

[OregonBlackBear]

When you have multiple symptoms pop up that make it hard to pin down, it's time to check your PH.

I would double down on recommending a PH check since you mixed in OF. Any soil from is rife with problems.

I would not recommend flushing. If you're using a super soil mix flushing won't wash the nutes out and will just stress the plants.

 

[Waira]

.... KS did not test well with us a few years back, and I still see troubles with it to this day,... Several had serious lack of P during bloom.
Lower leaves fading is in part normal, but it's early for that to start,.. higher up leaves with the interveinal chlorosis looks more like Mg defc, or an early micronute defc.,...
A pH check is critical now, despite what myths prevails about such soils being pH bullet proof which 100% BS... look into getting an Accurate 8 soil pH probe, a solid unit for the $; avoid the cheapo skinny probes you see around, they suck!
This said, water only doesn't mean never add anything in, some select supplements are very beneficial: humic-fulvic, Si, kelp, enzymes, and very important, inoculants/tea, something to boost and support the soil life which is full charge of making those nutes built in become and stay available...
If also fine to use a PK booster, top dress or water-in... Roots Organic HPK, or Terp Tea Bloom are examples,...

 

[Nadnerb]

.... KS did not test well with us a few years back, and I still see troubles with it to this day,... Several had serious lack of P during bloom.
Lower leaves fading is in part normal, but it's early for that to start,.. higher up leaves with the interveinal chlorosis looks more like Mg defc, or an early micronute defc.,...
A pH check is critical now, despite what myths prevails about such soils being pH bullet proof which 100% BS... look into getting an Accurate 8 soil pH probe, a solid unit for the $; avoid the cheapo skinny probes you see around, they suck!
This said, water only doesn't mean never add anything in, some select supplements are very beneficial: humic-fulvic, Si, kelp, enzymes, and very important, inoculants/tea, something to boost and support the soil life which is full charge of making those nutes built in become and stay available...
If also fine to use a PK booster, top dress or water-in... Roots Organic HPK, or Terp Tea Bloom are examples,...

Thanks I'll look into one of those.

 

[OregonBlackBear]

I like earth juice rainbow bloom mix. It's an organic powder feed that I scratch into the surface of the soil once flower gets underway. The boost of nutrients really gives the plants the bump they need.