Might I make a suggestion. I know u say u have it under controll but this might be good for future reference. Whenever I have had root based pets in the past. First I fdump the res, then clean it and the lid with bleach water mix. Then I fill up with only phd water and add 50% H2O2 at a rate of 7ml/L. I'll run this for one day then back the next day. Dump the res clean it again. And fill with plain phd tap water and H2O2 at rate of 1ml/L. Most chances are this one off big h2o2 dose will kill any pathogens and bacteria that pests thrive in. I then allow my plants to drink the plain nuteless water for another 2 days atleast (up to 6 days depending on severity) this allows the plants to concerntrate purely on building back a strong root mass. Once I'm confident things are in order I dump the res clean and fill with phd 300ppm and H2O2 at 1ml/L. Aslong as the plants show no sign of shock or over feed I increase the ppm every other day with a fresh tank. Untill I'm back to 1500ppm. 1500 is the sweetspot for my plants sometimes I can go as high as 1800 but really depends on the strain.
