First RDWC grow PLEASE HELP plants dying

[Freedomfighter710]

I have little holes yellowing tips leaves and weak growth please see pics and help thank you

[OzBud]

How's the pH?

[OzBud]

I've been looking at those current culture systems. Bloody expensive, if I give DWC a try one day I'll build myself a RDWC system like those.

[Freedomfighter710]

It's hard to keep it below 6.3

[OzBud]

adjust it down to 5.5 if possible, then let it drift up to 6.5 then adjust it back down to 5.5 again. Doesn't need to be the same pH all the time just let it drift upwards until it gets to 6.5. Different nutrients are absorbed at different pH levels

[oldjarhead100]

how do your roots look I grow in coco but have a friend who does dwc if your roots are not white you have a problem that's the extent of my knowledge of hydro lol

[Burny]

Your ph is a little high. Do you have ph down and ph up? What is your water temperature? What type of medium are you using? How close is your water level to the bottom of your net pots? Can you see any roots coming out of the pots? What nutrients are you using and at what strength. Tell us about the rest of your set-up.