thank you for your reply . should i soak the whole netpot? or just lift it up to the sink and flush it with h2o2 then clean water, then place back to the DWC? i have used less than 1/8 strength recharge till now, should i use more for the sake of the healthy plant? I know that H2O2 will kill all types of bacteria good the sick plant will be in the same res so this should benefit it too, if the bennies wont at least it can use the humic acids and amino acids in recharge.