RO and GH Flora question for the DWC group

Neumann

Active Member
Well, I made the mistake of asking this out in the general hydro forum, geting views but no answers. Since I know you guys are opinionated and not afraid to post, I figured I'd post again in here.

Here's the original post:

"Finally got an RO unit and dropped my 325-350 PPM water to +/- 10 PPM and am about to start the first grow with controlled water, so I have a question. I run full hydro RDWC.

I've heard arguments for supplementing all RO grows with Cal/Mag and the opposing argument that using GH Flora series nutrients in a non-Lucas method that there would be enough calcium and magnesium in the 3-2-1, 2-2-2, 1-2-3* ratios.

Can anybody help to construct a good case for either side? I realize that different strains may prefer more or less cal/mag, I'm just looking for a baseline.
"

* TSP/Gal. In ml/G, it's 15-10-5, 10-10-10, 5-10-15
 
All my DWC has been with R/O water at 20ppm.
All different strains, no clones, and all needed my PBP Cal/Mag
Now using the supplement, we have to be careful not to give too much Calcium because then we'll experience Phosphorus lock-out.
In my 10gals of R/O, I use 12ml of PBP Cal/Mag about every 2 weeks, because my Flora Micro and Bloom also has Cal/Mag in it.


And you KNOW I fuggin' diggin' that avatar, Neumann !! lol
I miss looking at my set up and seeing dank sticking up like that out my coolers.
Soon enough though, I have to have some purple goodness since all 3 of these strains can do that !! lol

 
All my DWC has been with R/O water at 20ppm.
All different strains, no clones, and all needed my PBP Cal/Mag
Now using the supplement, we have to be careful not to give too much Calcium because then we'll experience Phosphorus lock-out.
In my 10gals of R/O, I use 12ml of PBP Cal/Mag about every 2 weeks, because my Flora Micro and Bloom also has Cal/Mag in it.


And you KNOW I fuggin' diggin' that avatar, Neumann !! lol
I miss looking at my set up and seeing dank sticking up like that out my coolers.
Soon enough though, I have to have some purple goodness since all 3 of these strains can do that !! lol

Danks, FG. good info. The K lockout is what I'm concerned about. I guess I'll grab some C/M to have around and add it if I see a need. It's so weird to check my water and not see 325 PPM! I don't want to sound like a dick but I've been getting some damn good weed/yields with lousy water, I can't wait to see what happens with real control. ( Hope those aren't "Famous Last Words")

The avatar is now at Day 60 and in third day of flush and first day of no light. Woot!
 
You won't go back to tap water, EVER ! lol

You should be a proud poppa, cause she's thanking you for taking such good care of her !
 
Back
Top