thx for the quick response!
Environment should be all good. canna ferts, temp: 20-26 celsius, humidity 50-60%, still in veg, ec of 1-1.1
im using 40-50ml of 12% h2o2 for the 60l rez twice a week
flooding 5m on/40m off
water is falling back down into the rez and im having a circulation pump
its...