Hi guys I was just wondering if these scouring pads and plastic scrubbers would be aquarium safe. I plan on using them as a mix of mech/bio filtration. I am currently using matrix and polyfil.
I wouldn't use the first set., there really isn't any flow through those. as long as there's no detergent added to the second one, lots of people like them.
What brand do you guys typically use? I found the second one at the dollar tree. Would they work well as mech filters too or do people primarily use them for bio?