Hola a todos, a ver si me pueden ayudar, creo que ...

Hey man do not fear I have quite alot experience with DWC systems and this is nothing out the ordinary. The colour of roots is harldy less alarming as how it looks in fact you will find most roots will colour and turn that colour over time anyway they will go from bright white to a more browny colour and this is compleatly normal. Now Its not root rot either you are very unlikly to get root rot in a dwc or RDWC system there is simply too much air and movement in the buckets that prevents any nasties from hanging around. Best thing to do is nothing just keep and eye on the plant and by the look of the root system i think you would benefit from a small donut humidifier to be placed in each pot this will turn the top half of your buckets into a nutrient mix which will inturn encourage alot more side root growth and in turn a much larger root system :) also more air never hurt anyone either more oxygen the better in the water more surface activity the better :) Hope this helps bro and happy cultivating :)