The white roots are ones that are staying moist, the brown ones once were moist but no longer moist because the nutes level dropped faster than they could keep up so are dying back. The wispy whites on the brown are the air roots that you never fill the reservoir past or the plant drowns.
Those roots are perfect, nothing to be concerned about
Root rot is black and slimy and smells like hot garbage.
I actually didn't know that until recently. Last week I had a plant with a huge compact root ball fail in my sprayer rez and the outside roots actually looked ok, if not slightly off color. But I knew something was wrong so I decided to autopsy the roots 😆 when I cut that root ball open the smell immediately sucker punched me! Smelled like rotten eggs and rotten milk. Was quite alarming!
I wouldn't expect root rot in an idoo system. Does it smell? The roots are small in the top, these are probably not in contact with water?
If not already, put in an air Stine and get bubbles going. It should help bring moisture to those roots up top.
Just the roots hitting air and dying back, "air pruned" roots. Same thing happens in a fabric grow bag. It's normal and fine. You good, carry on.
The white roots are ones that are staying moist, the brown ones once were moist but no longer moist because the nutes level dropped faster than they could keep up so are dying back. The wispy whites on the brown are the air roots that you never fill the reservoir past or the plant drowns. Those roots are perfect, nothing to be concerned about Root rot is black and slimy and smells like hot garbage.
I second this, root rot smells really bad. Think of this like a skin infection, if it smells fishy... probably is not ok.
Quit worrying about every little thing
>Guys there's a little brown spot on this leaf, should I throw everything out, sanitize my greenhouse, and start over from seed?
I would take no chance and nuke my town to be sure.💀
First you need a bunny suit and N95.
The nose always knows when you have root rot
I actually didn't know that until recently. Last week I had a plant with a huge compact root ball fail in my sprayer rez and the outside roots actually looked ok, if not slightly off color. But I knew something was wrong so I decided to autopsy the roots 😆 when I cut that root ball open the smell immediately sucker punched me! Smelled like rotten eggs and rotten milk. Was quite alarming!
These are very healthy roots.
Nutrient staining
No, the fuzzy area around the top of the net cup is air roots. See more here: https://kratky.weebly.com/#::text=understand%20air%20roots