Mar 8, 2011 #1 J JoyFunWow Aquarium Advice Apprentice Joined Mar 7, 2011 Messages 13 Location Toronto, Canada Is it ok for the output flow from a cascade filter to be entirely underwater? Or does the water level in the tank need to be below the output?
Is it ok for the output flow from a cascade filter to be entirely underwater? Or does the water level in the tank need to be below the output?