Plant went from healthy and lush to dead in 48 hours

Phytoplankton said:

64 degrees is pretty low, I'm hoping that the reading was taken at first lights on, otherwise you really need to raise the temps about 15-20 degrees.

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64F is the reservoir temp, not the ambient air temp.

crazycarp said:

Hello,

I have a grow going my first in a couple years, I recently hooked up my irrigation,and gave them thier first auto water

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Have you used the auto watering system before? If no, did you use any copper or brass parts when assembling it?
High EC usually won’t fry them that fast, so I’d suspect something else. FWIW, I run *much* higher feed and substrate EC than you without issue. Good luck!

There's too many variables from one grow to another for charts or ec figures to be much use, presumably charts are set around A1 environments and lighting which most of us don't have, i don't anyway.

Test your run off and use that as your guide, it's absolutely tailored to your environment, lighting temps etc, if you need walked through a grow read the run off for any given period of growth.

Good luck

Phytoplankton said:

64 degrees is pretty low, I'm hoping that the reading was taken at first lights on, otherwise you really need to raise the temps about 15-20 degrees.

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That's my reservoir temperature. Room is 81F 65%

Triplefastaction said:

Have you used the auto watering system before? If no, did you use any copper or brass parts when assembling it?
High EC usually won’t fry them that fast, so I’d suspect something else. FWIW, I run *much* higher feed and substrate EC than you without issue. Good luck!

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Nope it's all 3/4 pvc, and the plants have been being fed from plumbing I'm now using for the auto watering I only flipped a ball valve and added 10' of pvc.

crazycarp said:

Nope it's all 3/4 pvc, and the plants have been being fed from plumbing I'm now using for the auto watering I only flipped a ball valve and added 10' of pvc.

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Yeah, it was just a shot in the dark. Crashing that fast is unusual, not sure what else to offer up. Hope they turn around for you.

Triplefastaction said:

Have you used the auto watering system before? If no, did you use any copper or brass parts when assembling it?
High EC usually won’t fry them that fast, so I’d suspect something else. FWIW, I run *much* higher feed and substrate EC than you without issue. Good luck!

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I have brass drain fittings in my Hempy buckets, is it likely to cause copper toxicity?

1212ham said:

I have brass drain fittings in my Hempy buckets, is it likely to cause copper toxicity?

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I wouldn’t say “likely”, but it’s just a variable that can potentially cause issues. If I was starting from scratch, I’d avoid use but if it’s working for you I wouldn’t sweat it.

crazycarp said:

Hello,

I have a grow going my first in a couple years, I recently hooked up my irrigation,and gave them thier first auto water the next day one plant was showing signs like I over watered I unplugged irrigation,and let dry out but she just shriveled. I'm in straight coco so I didn't think overwatering was going to be an issue but that's what it looked like to me. Any other thoughts?


48 hours later

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Im not a coco guy but in your original post you mentioned unplugging the irrigation and letting the plant dry out as you feared overwatering, thats a huge no-no and dried out coco is bad. Your plant looks like a soil plant left to wither for multiple days with zero water, maybe the roots just dried out too much and got fried, with the high ppms not helping either.

I wouldnt think res temps or even leeching from fittings can kill a plant in 2 days but im just throwing ideas around lol.