My MP40 is silent to me, even when moving massive water at high speed. But if I put my ear to the tank, it sounds like an airplane taking off in there and you can sense the vibration on the glass. When I turn the MP40 off and put my ear to the glass, it is much more peaceful in there and all you get is a little "whooshing" from the return pump line. The fish must sense the difference. It is night and day.
Does anyone know whether this internal noise and vibration impact health of fish and inverts? Are wet/dry-side powerheads like Vortex known for creating more "in tank" noise, as opposed to fully wet powerheads that just suction on the glass?
Does anyone know whether this internal noise and vibration impact health of fish and inverts? Are wet/dry-side powerheads like Vortex known for creating more "in tank" noise, as opposed to fully wet powerheads that just suction on the glass?