lilly pipe at night?
So all of the ADA books say to lift the lilly pipe at night 1/3 above water to add air to the tank. When I do this I get a loud slurping sound. Is this normal? The sound really bugs me, is there a way to avoid this/ Can I set it where the pipe just comes up a little bit, enough to add air, but not large enough to slurp?
Also how do you get the suction cup off and on easily every morning and night? I'm using a pair of tweezers now to "pop" it off, but I don't want to harm the glass - any suggestions -