Originally Posted by finnfinnfriend
Oh yeah and I've heard you can put some sponge inside of the intake stem. Has anyone tried that and does it work well?
You can wrap the intake in sponge or you can take the cap off and stuff it full. The built-in filter for my 5-gal hex tank is way, way too strong if I don't baffle the intake.
In a pinch, you can wad up a ball of non-scented paper towels and use it to plug up most of the intake stem. Just position it high in the basket so it reduces the area open to the water. Change it every few days to prevent it from getting scummy or from falling apart.
Eventually, I switched to using filter sponge to baffle the intake, but because it flows, I also had to baffle the outlet by cramming some filter sponge pieces into it. As long as the water continues to flow, and the filter basin doesn't overflow or sit stagnant, there's nothing to worry about.