StealthLED
- Posts
- 111
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- 158
- Joined
- Aug 4, 2020
- Points
- 43
Hi everyone
Been suffering with this deficiency for my last 2 grows since I've started using RO water, I need to use RO water because my source water is high in magnesium and lower in calcium and this was causing problems.
My last run I had 2 different strains one was worse than the other, this time I've got 2 different strains again one isn't showing a deficiency but the other is.
I'm growing in 2 separate rdwc system, I add 100ppm calcium and 40ppm magnesium to my RO water. I'm using advance nutrients ph perfect A&B at first I wasn't adding any calmag to my RO water because I thought I could use advance nutrients with RO water and without the need of calmag but on my last run I had to add it to try and get the deficiency under control so I've continued to do this.
I'm now on the start of week 3 flower, total ppm with a&b is 400 and ph 5.8 if I take ppm any higher the ppm start to rise over a 24 hour period.
I'm using quantum boards par is up to 500-700
Room temps are 28.5 - 29.5oC (83. 3 - 85oF)
Humidity 67-61%
Some leaves have rust spots, some have light green patches and nearly all have purple steams, this is a purple strain so not sure if that's why leaves steams are purple or if this is because of the deficiency?
I'm a little unsure if it's just one deficiency or more so I thought I'd ask for help instead of just adding more calmag incase they're both not needed...
Been suffering with this deficiency for my last 2 grows since I've started using RO water, I need to use RO water because my source water is high in magnesium and lower in calcium and this was causing problems.
My last run I had 2 different strains one was worse than the other, this time I've got 2 different strains again one isn't showing a deficiency but the other is.
I'm growing in 2 separate rdwc system, I add 100ppm calcium and 40ppm magnesium to my RO water. I'm using advance nutrients ph perfect A&B at first I wasn't adding any calmag to my RO water because I thought I could use advance nutrients with RO water and without the need of calmag but on my last run I had to add it to try and get the deficiency under control so I've continued to do this.
I'm now on the start of week 3 flower, total ppm with a&b is 400 and ph 5.8 if I take ppm any higher the ppm start to rise over a 24 hour period.
I'm using quantum boards par is up to 500-700
Room temps are 28.5 - 29.5oC (83. 3 - 85oF)
Humidity 67-61%
Some leaves have rust spots, some have light green patches and nearly all have purple steams, this is a purple strain so not sure if that's why leaves steams are purple or if this is because of the deficiency?
I'm a little unsure if it's just one deficiency or more so I thought I'd ask for help instead of just adding more calmag incase they're both not needed...