TheVomit Hello everyone. I decided to try hydroponic growing as a small project. We are now in the second week, with a sterile system and 6 liters of nutrient solution. At the beginning I made a mistake and added Rhizotonic to the solution, which caused everything to be covered with a brown residue. Since this is a sterile system, I stopped using it, and now the plants are only receiving the base nutrients. (H2o2 6% 2ml/6 liter) Water Ec: 0.3+)calmag agent 0.3, Canna Aqua Vega A+B 8-8ml/6 liter=1.3 Ms