socaljoe
Well-Known Member
I'm testing the Kratky Method of hydroponics to see if it's viable for cannabis.What kinda set up you running outside? I've put a little thought into running a rdwc with the Rez inside to keep the soup cool, but Idk how well that would work, proly get to hot here!
If you're not familiar, Kratky is essentially a non-aerated, non-recirculating version of deep water culture. The main difference is that you don't keep the reservoir topped off, rather you let the water level drop so that the roots can pull oxygen from the humid area between the top of the water and the reservoir lid. So far, it seems to be a viable way to grow cannabis, at least the late season starts that I'm doing...full season viability remains to be seen.
As for the setup, I've just got some 27 gallon Home Depot totes for the reservoir and the plants are in 3" net cups. Running Greenleaf Mega Crop nutrients, Ph set to 5.8 initially but have not been checking or adjusting it and all has been fine, no deficiencies have cropped up. I have 7 plants running in this setup and all are doing great.
Also, as far as rez temps go...I've been 100% hands off with any kind of temp control, and they've been rocking along just fine. I did add some pond-zyme to keep algae at bay.