Promianswered grow question 5 years ago Don't let the plants stand in liquid for longer as 5 hours. And always give the roots their dry cycle. If you let them stand in the wet, root rot will most likely happen. Is rather easy to detect, lift the pot, smell the bottom and if it stinks unpleasant.. voila.
If you bottom feed and let the plants finish for a few hours, no problem, just empty the saucer after 5 hours of the ones not sucking up all and feed again when the plant is dry.