Try adjusting it slowly until your water level is at the bottom of the collection cup remember allow the adjustment at least a day to see where you are at
Yes but when all said and done you may need to adjust the air to although I currently am running my air wide open toWill do. You are talking about adjusting the water flow right not the air?
Sometimes it can take a couple weeks it has to build a layer of protein on it to be most effective which will happen with time What all do you have in your tank?