Findus
Member
Hey guys,
it´s my first grow using CalMag (I use Advanced Nutrients Sensi Cal Mag).
I´m on soil, day 25 of veg. My tap water has 1.3 EC, 218mg/L Ca and 43mg/L Mg.
I use 100% RO water and add around 50% of recommended dosage CalMag so I get around 0.3 EC.
Before, I used a multi mineral salt for fish aquarium. It worked nearly perfect in combination with 100% RO water on soil but has only 25mg/L Ca and 6mg/L Mg at 0.3EC.
Now at 0.3EC CalMag my plants show a Ca-deficiency.
Is it possible that it´s because I just go half of recommended dosage? But full dosage would be around 0.6EC-0.7. Another thing is, there is kelp in it which could be the reason of the EC?!
I just think 0.7EC for base water without nutrients is too high...
Does someone have experience with CalMag or 100% RO on soil?
I grow for around 5 years, I know how to water etc. so it has to be CalMag product problem.
Thanks a lot
it´s my first grow using CalMag (I use Advanced Nutrients Sensi Cal Mag).
I´m on soil, day 25 of veg. My tap water has 1.3 EC, 218mg/L Ca and 43mg/L Mg.
I use 100% RO water and add around 50% of recommended dosage CalMag so I get around 0.3 EC.
Before, I used a multi mineral salt for fish aquarium. It worked nearly perfect in combination with 100% RO water on soil but has only 25mg/L Ca and 6mg/L Mg at 0.3EC.
Now at 0.3EC CalMag my plants show a Ca-deficiency.
Is it possible that it´s because I just go half of recommended dosage? But full dosage would be around 0.6EC-0.7. Another thing is, there is kelp in it which could be the reason of the EC?!
I just think 0.7EC for base water without nutrients is too high...
Does someone have experience with CalMag or 100% RO on soil?
I grow for around 5 years, I know how to water etc. so it has to be CalMag product problem.
Thanks a lot