radmobile
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Feed water…..
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Ph’d water to 6.5 and ran it through one of the affected plants. Here’s the run-off ppmWhat ppm does the Ca, and N come out to?
Plug it into Hydrobuddy and find out.What ppm does the Ca, and N come out to?
The details for the meter reads:Plug it into Hydrobuddy and find out.
The ppm measurement isn't exactly handy compared to EC. You don't specify whether yours is a 500 or 700 ppm meter.
What should my runoff ppm be? I feelI was talking elemental ppm, but on a 500 scale it’s approx 170 N, and 150 Ca. So not that high.
Soil. FF Happy FrogYes! That is way to high! If your feeding say 600 ppm, then 800-850 is acceptable. Are you in coco coir?
I’m starting to think that part of the issue is either the fulvic or the silica. My clones are in fresh soil with only Mr. Fulvic and PowerSi and they’re showing similar signs.Yes! That is way to high! If your feeding say 600 ppm, then 800-850 is acceptable. Are you in coco coir?
It looks like a magnesium problem. If using silica and fulvic every feed, apply them at half strength. Other than that, be sure to double check the pH of your feed input and runoff.I’m starting to think that part of the issue is either the fulvic or the silica. My clones are in fresh soil with only Mr. Fulvic and PowerSi and they’re showing similar signs.
The Jack’s recipe calls for 1.2 g of Epsom. I was feeding at 1.5 g per gallon. I was also heavy on calnit by .6 g and my run off ppm was 1530. That’s seems high, so I’m cutting the Calnit and Epsom down by half. Are you saying I need more epson?It looks like a magnesium problem. If using silica and fulvic every feed, apply them at half strength. Other than that, be sure to double check the pH of your feed input and runoff.
If you are under LED or CMH, you may need to add 1g epsom salt/gallon as well.
In veg, I do 3 grams Jacks, 2 grams Cal Nit, 1 gram epsom salt per gallon under LED. In flower, I do 3.6g Jacks, 2.4 cal nit and 1.2 g epsom salt per gallon. The feed rate they recommend is for sun grown or fresh bulbs in a sealed room with CO2.The Jack’s recipe calls for 1.2 g of Epsom. I was feeding at 1.5 g per gallon. I was also heavy on calnit by .6 g and my run off ppm was 1530. That’s seems high, so I’m cutting the Calnit and Epsom down by half. Are you saying I need more epson?
veg: 1000 w LED
flower: 2000 w LED
Thanks! I’m flushing them all. I think my biggest mistake was thinking I could feed full strength (hydro,calnit,mag,silica,fulvic) on every feed. I’ll give them half strength on the nutes and probably drop the silica and fulvic for this grow.In veg, I do 3 grams Jacks, 2 grams Cal Nit, 1 gram epsom salt per gallon under LED. In flower, I do 3.6g Jacks, 2.4 cal nit and 1.2 g epsom salt per gallon. The feed rate they recommend is for sun grown or fresh bulbs in a sealed room with CO2.
Some people get away with just Jacks/Cal Nit. I didn't know you were already supplementing with epsom salt.
Bill - what are your in and out ppm readings, if you don’t mind me asking? You’ve obviously got it down so I’m trying to get close to your numbers. Thanks!In veg, I do 3 grams Jacks, 2 grams Cal Nit, 1 gram epsom salt per gallon under LED. In flower, I do 3.6g Jacks, 2.4 cal nit and 1.2 g epsom salt per gallon. The feed rate they recommend is for sun grown or fresh bulbs in a sealed room with CO2.
Some people get away with just Jacks/Cal Nit. I didn't know you were already supplementing with epsom salt.
360 ppm Jacks, 240 cal nit. I forget the epsom salt. I'll double check when I have time.Bill - what are your in and out ppm readings, if you don’t mind me asking? You’ve obviously got it down so I’m trying to get close to your numbers. Thanks!
I filled a 2 gallon jug tonight and measured as I went:360 ppm Jacks, 240 cal nit. I forget the epsom salt. I'll double check when I have time.
Is mixing order truly critical, or a lot of “bro-science”?Use the gram scale. Calcium nitrate can vary greatly by the size of the prill.
Here is what I do and have been successful.Is mixing order truly critical, or a lot of “bro-science”?
If mixing order is important please advise, or at least informed opinion please, thanks.
Previous jacks resources have instructed full dissolution of part A and Epsom, prior to B(cal nit), to avoid precipitation.
I’ve heard as well add Si before anything else, don’t remember details why, seems a pH interaction??
You go from least soluble to most soluble. It's harder to dissolve things when there's already "stuff" in there.Is mixing order truly critical, or a lot of “bro-science”?