Potassium deficiency or nute burn?

[Latitude17]

PH has been 5.8-6.2, res temp on chiller at 68'
PPM dropped from 715 to 151 in the last 24hrs (wtf?)

Here's 3 days ago:

And today .

Before I flush and start over, I'd love some knowledgeable growers to chime in and educate me.

 

[Muzzybuds]

Bump

 

[Chronc]

@Pennywise

 

[Pennywise]

What are you feeding and how much?

 

[Chronc]

What are you feeding and how much?

Thanks for jumping in bro.

 

[Pennywise]

Hey Chronc, and whats your ph?

 

[Chronc]

Mine? I haven't checked recently, I will be tomorrow hopefully.

 

[Latitude17]

pH for this plant has consistently been 5.8-6.2 range

 

[Pennywise]

You can rule out lockout then.

 

[Latitude17]

You can rule out lockout then.

Thanks for that. I'm out of ideas at this point .

 

[Muzzybuds]

Dang! One of my girls is looking kind of the same and i really want to finally pin down the cause of it .

Hows yours looking now?

 

[Pennywise]

That chart should help

 

[Latitude17]

Dang! One of my girls is looking kind of the same and i really want to finally pin down the cause of it .

Hows yours looking now?

On its way to the grave, I'm afraid..

 

[Pennywise]

That happened fast!!

 

[Latitude17]

That happened fast!!

Yeah it's maddening .

 

[Chronc]

Wow man. That sucks. .

 

[Muzzybuds]

Oh man. Sorry to see that .

 

[Latitude17]

Just in case anyone else ends up here, it was pythium (root rot). Again. I just trashed the plant and put the equipment on sterilization lock down for the next 24hrs: RO water with bleach cycling through everything. After that I'll re clean with soap and water and let it dry for a while.

 

[Pennywise]

Cant wait to see you get going again, i thought i had root rot last week but looks like it was heat. Water was very warm and 2 of my girls threw a hissy fit. Thought i was going to lose them.

 

[Latitude17]

Cant wait to see you get going again, i thought i had root rot last week but looks like it was heat. Water was very warm and 2 of my girls threw a hissy fit. Thought i was going to lose them.

It was a total heartbreaking discovery but enough was enough. It was so healthy too .

For comparison: