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They look fine to me? I don't think the browned roots can be reverted back to white healthy looking roots.. they are dead.. New roots will replace them. But here they look fine maybe stained

Most definitely not! Basement is usually a lot more humid than the rest of the house in most cases

Very interesting.. I had something similar on my tomato plant before.. I think checking the root is a good first step.. it looks like roots are not taking up water. My case was not resolved.. could have been genetics

I am also familiarizing myself with aeroponics. This person who recently told me this no longer runs one, but he did it for a large scale commercial run back in 1990s and was happy with it for growing root vegetables like carrots and potato tubers. As for the 1500 psi tank, that is what I heard...

Depends on what worms are feeding on! They mostly recycle, rarely create something new

If it is not too badly spread, I dip wet q-tips in isopropyl rubbing alcohol, rub away the infected spots manually. They just burn away instantly and come right off. You can also mix vodka with watet, dilute down to less than 5%, and spray that onto the affected areas. They take time to spread...

Looks like nute is out of balance.. if watered all fine

I just water rodi water a bit with syringe directly onto the netpot until roots are down.. usually the roots form and dip down into the reservoire within a week or so if the gap is within a couple centimeters. I would think it is not a good practice to keep the netpot and medium wet with nutes.

Thank you Jedi. I just learned that commercial aeroponics often do require pressures higher than 1500psi for the main tank, but since the pressure is high only upon recharging and is always dropping with uses until the recharge, the tank would not experience drastical temperature change.. hence...

Hi Jackson. I use the ordinary air compressor used for filling up car tires. Even manual hand or pedal pumps used for bicycle tires can be used.. but I only need about 80psi; any higher may need something more robust which I am not really familiar with yet

Thank you Jedi.

Hello. I have a question in regard to charging an accumulator tank. Some say never to use anything other than nitrogen to top it off because oxygen in the air and humidity condense and corrode metal, causing a fatal damage to the tank. But when I did some research on that matter, it looked this...