So I am looking to buy pond matrix in bulk because they are cheap and I wanted to just fill in the extra spaces in my sump with it. I was looking at some reviews on youtube and stumbled upon this guy.
http://www.youtube.com/watch?v=I7d3aK_tX34
He was saying that it would be cheaper to buy pumice at a local rock yard.
Is seachem pond matrix really only regular pumice rock? Has anyone used ONLY this matrix media in their sump? Good/Bad?
Also anyone actually get pumice from a nearby rock yard?
http://www.youtube.com/watch?v=I7d3aK_tX34
He was saying that it would be cheaper to buy pumice at a local rock yard.
Is seachem pond matrix really only regular pumice rock? Has anyone used ONLY this matrix media in their sump? Good/Bad?
Also anyone actually get pumice from a nearby rock yard?