Ec levels for rdwc

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Budman1487

Member
Hi guys could anyone help with me what sort of ec levels I should be trying to keep to through veg and flower in rdwc system.
I’m about 4-5 weeks into veg and it’s at about 1.1 is growing but not substantially fast as I’ve grown in coco before as has been a lot faster but I don’t wanna over feed as I read lots of things about that in dwc .

many thanks in advance !
 
HolyAngel

HolyAngel

Well-Known Member
yeah I think at 4-5 weeks in veg (at the .5 ec scale for ppm) i was using around 400ppm(~0.8 EC) but it depends on the plant. If you watch the ppm levels morning and night you'll be able to tell if it needs more or less nutes. By week 8 in veg and during transition period I was hitting 700-800 ppm, but now at week 2 in flower i'm at 500. Just gotta watch it. If it goes up a bunch in 24hrs you need to lower the nute level from where it started, if it drops a bunch in 24hrs then you need to raise the nute level from where it started. If the ppm's are about the same after 24hrs and the water level went down then you're right where you need to be.

406E4EC0-0C42-46F3-8C4C-391F9B4E6CF1.jpeg
 
B

Budman1487

Member
HolyAngel said:
yeah I think at 4-5 weeks in veg (at the .5 ec scale for ppm) i was using around 400ppm(~0.8 EC) but it depends on the plant. If you watch the ppm levels morning and night you'll be able to tell if it needs more or less nutes. By week 8 in veg and during transition period I was hitting 700-800 ppm, but now at week 2 in flower i'm at 500. Just gotta watch it. If it goes up a bunch in 24hrs you need to lower the nute level from where it started, if it drops a bunch in 24hrs then you need to raise the nute level from where it started. If the ppm's are about the same after 24hrs and the water level went down then you're right where you need to be.

View attachment 4467932
Click to expand...
Thanks bro only just see this has really helped
 
henrystyle

henrystyle

Well-Known Member
HolyAngel said:
yeah I think at 4-5 weeks in veg (at the .5 ec scale for ppm) i was using around 400ppm(~0.8 EC) but it depends on the plant. If you watch the ppm levels morning and night you'll be able to tell if it needs more or less nutes. By week 8 in veg and during transition period I was hitting 700-800 ppm, but now at week 2 in flower i'm at 500. Just gotta watch it. If it goes up a bunch in 24hrs you need to lower the nute level from where it started, if it drops a bunch in 24hrs then you need to raise the nute level from where it started. If the ppm's are about the same after 24hrs and the water level went down then you're right where you need to be.

View attachment 4467932
Click to expand...
nice chart
 
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