Help... cold water stress???

Rdwcgrower said:

Ec on regular well water used .35
Ec on the well water used .38
(I have two wells)
Photo of roots... clean but not thriving!

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Delps8 said:

"benzene" - that was my semi-annual attempt at humor. In all seriousness, weird things can happen in the water supply.

A moderator on a site for autoflowers redid his RDWC set up and started having problems with his grows dying off. It took a couple of grows for him to trace it back to the metal in some of the fittings that he was using (copper, perhaps).

We've also seen growers kill off multiple sets of germinated seeds because the paper towels he was using were scented.

The key issue about "root rot" is that the roots will be tan to dark brown, slimy to the touch, and they give off a distinctive odor. In hydro, roots will turn brown over the life of the grow because they're immersed in nutrient water. The newest roots, closest to the plant, will be lighter in color vs the older roots. With root rot, the color will be uniform and will quickly turn brown.

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Hollatchaboy said:

I used to use hth pool shock for dwc. I never had any problems like that with dwc, it was always something else. I was always able to get nice strong roots, that smelled like the inside of a pumpkin to me.....

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It always frustrated me that the gh micro would stain the roots.

I bought a chiller. I never used it. It sits, boxed, in my attic to this day. Lol

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Rdwcgrower said:

Nice strong roots. My autos roots use to look like that.
Anyways, it's day 6 with this stunted growth... now it comes down to, how long before I chop em and start over?
What a sad thing to say.... one more week I guess.

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Hollatchaboy said:

The only other variable, is the water, but without knowing what was in that water, it could be several things. I still don't believe it was the temp. There is only one way to confirm it though.

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Rdwcgrower said:

How's that? Have a water mineral test?

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Shockfluid said:

Dump the res and go back to tap water. As well, get a water heater to warm the res to 82, run an air stone + wavemaker too. You can't grow hydro with a good res

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Hollatchaboy said:

yea, you could have your water tested. If it's hot something in it that kills plants, most likely it's not that good for human consumption as well.

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driver77 said:

Maybe the combination of cold water and defoliation would shock it but it should have bounced back pretty quick.
You mentioned a nutrient change also? Anything you haven't used before?
If all else is in check is has to be something in that water......the water change back should have fixed it pretty quickly. Since it didn't it has to be a pathogen or something way out of wack in that other well.

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