Brownish roots dwc
Week 2 of 12/12 90w LED NL x BS dwc. Everything doing well so far and the speed of growth is VERY FAST.
But I may have a problem with the bigger little plant, its roots are starting to get a brownish kind of color, something like that dirt pebble dust/mud. or it could even be a type of algae once the pebble have already previously been in contact with soil.
Any ideas or thoughts are very welcome.