Grow Mediums Just a couple DWC questions

[yolobudz]

Ok, so I have a few DWC questions feel free to answer. There's just too much conflicting info online. So, when it comes to DWC. The most important things would be reservoir temp, ph and air flow in res? My biggest concern is maintaining PH with nutes. I'm a very firm believer in the "KISS" method with everything meaning keep it stupid simple. I do have a few auto grows IN soil with HPS under my belt. Please feel free to give me the must knows of DWC and LED because as soon as my tent and beans get in that will be my next method. Thank you all so much for your vast knowledge in advance.

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[derek420colorado]

the most important thing in hdyro is pH and AI

 

[briman]

ppm goes up and your ph goes down, use less nutes
ppm goes down and ph goes up, use more nutes
ppm stable and ph drifts up a bit=stable
and keep rez temps under 72*F

new to dwc, I'd look into the Lucas Formula!!
http://lucasformula.com/