ppm/cf strengths

[Guest SOMEONE]

am wanting to knock up a dwc/aero bucket set up.. uno the 1s that have enough ferts to cover pump that sprays out feeds at times set by me via timer. i know they need to be light tite so no algae grows and we all know how roots haye the light.. anyways iyo what is the ppm rate best for this sort of a system.. can i use my advanced nutrients or should i get specific dwc nute??? a ph of 5.8 would be the best to start new seedlings off at hey.. thanks all for your time.. it is much appreciated..peace out and take care all... someone..

[F420]

Off memory and I only used this method once.

The PPM was under 500ppm for veg and a maximum of 1200ppm flower.

ph between 5.3 and 6.5.

 

Wait for confirmation from somebody thgat spent more time on DWC to be safe. My dwc grow was not a good grow, I blame the method

[Luke Skywalker]

DWC specific nute?

 

Anyway, keep nutrient levels on the lower side, but in the end you'll just have to see how much your plants can take. Always start low and slowly move up, and if you start to see tip burn then back of a point or so.

 

I much prefer to use EC/cF as a measurement as ppm is not a true measure.

[Luke Skywalker]

Real deep water culture doesn't have a nutrient pump, just an air pump, and it runs constantly... I think you're talking about aeroponics here, which is highly prone to failure although if managed correctly can kick ass.

[everest]

yea lukes spot on ...

 

the feed times on dwc are 30 mins before lights on ...... then 30 mins after lights off .... for 30 mins .

 

start off with weak nutes ... and watch the growth , air should run constantly

 

ev :smoke

[Luke Skywalker]

Feed times? What feed times? I never had feed times. You could certainly hand water a cup or so of water from the rootchamber through the netpot but most systems don't have a retic system....

 

Mind you, I have heard of some doing this and I can see some benefit, but the plants usually pull up enough water to keep themselves happy once those roots reach the water level....

[Guest SOMEONE]

DWC specific nute?

 

meaning aqua or some similar...yeah sorry my nute strength at the minute for the seedlings is cf 6...

 

take care peace out

[F420]

when you have a truncheon you can read either scale its the same thing.

 

but i agree ppm isnt the real way of dealing with strenghts.

[SukonmiSkunk]

in hyroponics, and I would think this goes for all hydro, ppm can run upto 1800..max. I dont do DWC as such but I am in hydro.

lukes given great advice, work upto it slowly, try it 1200....if the leaves look splotchy, then increase. The only thing you need to look for is the browning of the leaf tips, once you notice this just lower the nutes.

With hydroponics I wouldnt run anything under 1200, mine run between 14-1800, and its healthy as...

I would start at about 1200 and gradually increase day by day...but never over 1800, thats about the max ....where tip burn will start.

ph...realy isnt an issue as such, any where from5.8-6.8.... try and find an inbetween at about 6.3.... should be fine...

Edited February 24, 2006 by SukonmiSkunk

[Guest SOMEONE]

thanks 4 the tip will be slowwely increasing..

 

take care and paece out