Claw leaves? Whats going on

[tinytoon]

Good point I didnt think of that

[GanjaRobPDX]

Attachment 281098

This is a Myron L T6 pH/TDS combo meter.
No probe replacement needed, just keep it moist and recalibrate every 3 months.
I have owned these meters for over 8 yrs and no fails.
downside... they cost around $400. In the long run that saves $ though because you dont have to buy probes.
These are extremely accurate meters. put two side-by-side and test water from the same source and you will get the exact same reading. try that with digital meters.

Good call with the over watering... all i could see was the hydroton so I didnt think that was possible. But rockwool is, like you said, a super sponge.

Good luck with your project.

By the way, if you really like top feed set-ups, try using 1/4 minus pea gravel. I know it sounds strange, but when I tried it I have never seen roots more bearl in my life. plus its super cheap and so heavy there is no way a plant will tip over.

[J-dubb206]

Thank you all for the feedback, my plant is now finally starting to grow semi healthy new growth.
J-Dubb

[polishpollack]

If I could chime in...
The reason why aeroponics is so unforgiving is because of the greater oxygen content. This method allows roots to be exposed to more O2 which is critical to prevent roots from drowning but also creates much more fert uptake. This is why it's necessary in aero to reduce the amounts of ferts you use, or you'll cook your plants. There is a more narrow window in aero where for example you might have a ppm that works but fluctuates between 900 and 1400 in DWC, you have to keep a close eye on an aero grow because the ppm window is much smaller, maybe 700-900 ppm. A good ppm/pH meter becomes necessary in hydro. Worth the expense though, because when done right your plants will kick butt. I suspect that if you're growing in hydro and overwatering is thought to be a problem, you could either reduce your pump run times or provide more oxygen. Or both.