I want to change the substrate in my tank and I am thinking sand will be the best for my plants and I'm leaning towards pool filter sand because it is so cheap as well.
I've heard something about needing to have a sponge in the filter intake tube to prevent the sand from getting sucked in and ruining the filter. Is this true? If so where would I get a good sponge to do this with and how do you attach it like that? Also, is pool filter sand a good substrate for plants?