Last week I finaly bought a 5 gallon tank kit for Tiberius. After plugging the in the filter I realized the current coming out of the top is too strong. Tiberius enjoyed playing in it for a while but when he was hiding behind his house I knew he had enough. So since then I have only left it on for small periods during the day.
I heard and have seen pictures that people have posted on here of a sponge rubber banded to where the water comes out. I want to do that but I was wondering if any clean/new sponge will work. I know to make sure that it dosen't have cleaning chemicals in it or anything but I wanted your opinion.