Stop Filter Waterfall Noise
I've read on this forum about people attaching sponges to the outfall of their box filter, to stop the waterfall noise. What is the best way to attach the sponge to the filter? Right now I have it rubber-banded to the filter, but I'm thinking that may not be the best thing in the world for the fish. No matter how I position it the water does flow over the rubber band.
any safer suggestions?