CaCl to treat Ca deficiency?

Hi Most Knowledge-able Kings of Coco!

I've run into the good old lack of Calcium problem. I am one hundred percent certain, it's still in early stages but very clear on the older plants. The combination of symptoms across them point to clear Ca def, and the iron has started locking up too because of it.

I've been mixing my nutes using rain water and relatively low EC's, I've mostly got some Bubbas and they're never all that hungry in my experience. So I know where I screwed up.

Now my question is, are small amounts of CaCl safe to use instead of Cal/Mag? I'd prefer not to mess about with the extra nitrogen etc and just hit the problem right in the face with what it REALLY needs. Plus, I scored a free sample of CaCl from my kit gear supplier so I have it right here, but living in an outlying region Cal/<ag is 3 days away at the quickest.

Thank you kindly for your time, oh Gods Of Greenery!

Be warned that an abundance of chloride turns toxic very fast.

MrEDuck said:

Be warned that an abundance of chloride turns toxic very fast.

Click to expand...

EXACTLY what I am scared of. Perhaps I just wait it out, make a little foliar feed with some dolomite lime and get the Cal/Mag, one good dose should do it anyway.

I've got a little Diesel I'm not really sure if I want to run, she's also the worst off of the lot. I'll turn her into my test subject and report back. A week or two should show if it's any good, and two more to make sure it doesn't go toxic. Hey I got it for free so why not...

One day I would really like to test how much chloride a plant can take and how medium dependent it is because I've heard of people amending soil with potassium chloride because it's sold as potassium muriate. I'll be curious to see what your results are. The ability to use chlorides to provide boosts of a single element would be really neat for tinkering with feeding regimes.