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  1. shortarker99

    Problem in coco coir

    Gonna try w/ some cuttings for testing, ty
  2. shortarker99

    Problem in coco coir

    I've succesfully run multiple runs with this coco & this nutes reaching 800-900g/m2. I moved to another location and cant make it work since april. I tried reverse osmosis water to discard the water but didn't help
  3. shortarker99

    Problem in coco coir

    Those 3 marked plants have a special brand of coco which is pre-buffered. The rest and worst ones are made from coco bricks and buffered by me. These 3 are growing faster and stronger, though they also have some deficit signs. Not as strong as the rest And this one is from a greenhouse...
  4. shortarker99

    Problem in coco coir

    Good point. However, i would have tu use less if using penta since it has more Mg in it. but still isnt such a difference (8%). I dont think it really matters. Those quantities are for 750L = 200 gal of solution
  5. shortarker99

    Problem in coco coir

    No salt buildup, checked with https://bluelab.com/usa/bluelab-pulse-multimedia-ec-mc-meter and by runoff
  6. shortarker99

    Problem in coco coir

    Kept it fully saturated, same problem. And when did it people told me it was overwaatering lol
  7. shortarker99

    Problem in coco coir

    I also grow in coco coir pots outdoors. Will try with a small batch.. Still i dont see how a higher amount of Mg will result in Mg deficiency, i think i should see a Ca deficiency in that case as Mg is competing with Ca.
  8. shortarker99

    Problem in coco coir

    Im applying chlorine to reach 400mv ORP as oxidezer. And regarding the expiration. I tried using new salts, no success. This is the formula These are the salts
  9. shortarker99

    Problem in coco coir

    Hi guys. Sorry for the long delay. Im still battling with this. I suspect this is Mg deficiency pH is at 6. I tried these without success Fungicides Chlorine at nutrient solution at 400mv ORP Trichodherma Different ECs Osmosis Water Different source water Desinfect whole water system Last...
  10. shortarker99

    Problem in coco coir

    Hi Most of them are looking like these. R/O Water Ec 1.8 pH 5.8. Water temp 18/21 Celcius. Ambient temp 24C. 65-70% humidity Any opinion? I tried many different watering strategies, no improvement. They are drinking but can't make symptoms go away. I suspect FeEddha is expired (bought it...
  11. shortarker99

    Nutrient burn in veg - DTW

    Hi, Im experiencing what i bet a nutrient burn in my plants. I make the nutrients by myself, i wasnt having any problem in the past but it seems something is going on with the coco (It is reused coco) since im using the same water in aerocloner and plants are fine Few days ago did a flush and...
  12. shortarker99

    Grow room: Sealed vs ventilated

    Hi folks I've succeded with a 12x12 sealed room with 1200PPM.. Using CO2 tank, dehumifier and AC Now i want another room and i was considering doing ventilated to save costs associated with dehumifier and CO2 equipment and electricity I live in a dry area so my plan is to as follows: Using...
  13. shortarker99

    Potassium deficiency? DTW with coco coir

    Hi guys Im on week 4 of flower. Im using this nutrient solution: Is it potassium deficiency? I pre-treated de coco coir Any suggestion?
  14. shortarker99

    DIY Hydroponic Nutrients in 5 minutes

    Can i replace Iron DTPA for Iron EDDHA ?
  15. shortarker99

    Deficiency or nute burn?

    If i simulate with those number the relation 1A-1B-1D i was using this are the results So this appear to be very low P, which should't be a big concern in veg but also low K Looking for K deficiency: https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency...
  16. shortarker99

    Deficiency or nute burn?

    Holy shit, it seems those % were really bad and that the seller doesn't know the difference between quantity and concetration. So, apparently these are the good PPM for each component I play a bit with some salt components to try to recreate the salts they use to double check the PPM table...
  17. shortarker99

    Deficiency or nute burn?

    what I mean is if the amount of calcium and sulfur that results from that combination is OK (orange column)
  18. shortarker99

    Deficiency or nute burn?

    Is that amount of calcium and sulfur ok?
  19. shortarker99

    Deficiency or nute burn?

    Did my homework First table is 1-1-1-1 relation Second table is with adjusted factors to match this ratio: 122-99-171-68 So the factors are 0.6 - 0.15 - 0.2 - 0.5 which translates into 4 A/1 B/ 1.33 C/ 3.33 D. Seems legit? Below the pictures of the calculator. Put 3.78 ml to convert to...
  20. shortarker99

    Deficiency or nute burn?

    Let me say it I consider these instructions pretty useless Pretty self explanatory: Seedlings : 300 - 750 ppm Vegetative: 750 - 1200 ppm Flower: 750 - 1500 ppm This ranges are fucking high in my opinion Then, it says how to put each nutrient: Basically shake and put 5 ml / 2 l water (which...
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