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Cal/mag

Discussion in 'Nutrients and Fertilizers' started by petermc1951, May 30, 2018.

  1. Would anyone have an idea of how Long I should be adding Cal mag to my reservoir drip to waste system using Coco. First week of flower? Or continue throughout grow? Thanks for advice
     
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  2. G gnome

    G gnome Moderator Staff Member

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    Up to wk 5 or 6, imo
     
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  3. Ty
     
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  4. i stop at 4 when i start pk boost. coco dtw
     
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  5. Ty:)
     
  6. I use RO and about 100ppm of Calmag in straight coco, until the plants tell me they don’t need it anymore. Basically, once they start to get too dark green I cut it out. Around the 2nd week of flower for me. Then I only use it if I’m addressing a deficiency later in flower.
     
  7. PharmHand

    PharmHand

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    Probably the most important factor in determining its necessity would be your water source. City tap, ro, well? What’s your source waters ppm/ph? Impossible to give a solid answer without knowing that
     
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  8. justiceman

    justiceman Moderator Staff Member

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    All great answers here. I don’t use calmag because my base nutrient comes complete so I believe ones base nutrient composition is also something to consider.
     
  9. PharmHand

    PharmHand

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    2nd week??!! Mine don’t get that lush green look til about week 5. What bass nutes you using bro? Just curious
     
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  10. I’m using Remo this run so it may work out differently. However, last run with Dutch Master Gold A+B I cut it out after the stretch without issues. This was what they looked like when I flipped them.
     
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  11. And then around the end of week 3. About a week after stopping calmag.
     
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  12. PharmHand

    PharmHand

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    Definitely lush green. Nice. Remo hey? You using the recommended dosing? I found remo mixed up weak even at full strength, maxed out at about 800ppm(1.6ec) even w all the additives. I didn’t like the npk ratio of remo for coco. Too much potassium for coco imo definitely was formulated for peat based mediums. Coco has a lot of potassium naturally occurring. Check out @nMEEKS contributions on here man I think you’ll like the knowledge he’s dropped.....
     
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  13. Thanks, I’ll check him out. I agree with what you’re saying about the ppms. But I don’t feed much above an EC of 2.0 even in flower. Right now I’m feeding 1.4 EC with Remo M+G, silicate, calmag, Bio-Cozyme. I flipped to flower this week, so I’ll see what I end up with swapping in the bloom and Astro flower. I’ll see how I’d does and maybe change up again next run. Looking at veg+bloom dry mix as a possibility. So far I’ve ran FoxFarms, Advanced Nutrients Sensi line, and Dutch Master Gold line.
     
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  14. I stopped at week 5 and 3 days later c- so back to cm lol. Only 5ml per 10ltr water.
     
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  15. right on... i always up base a lil first. i use mono so add cal or mag as needed.
    last run i stopped both before flip n had no issues....
    every strain... even pheno is a lil different imo
     
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