So Home Depot was a wasted trip as usual ... drove an extra 40 minutes to go to Lowes instead ... Dont know why it has to be so difficult to get PVC parts here....
So on media ... people use lots of different things ... the items in this pic all fall into the scrubby catagory.
The big white round thing is a floor buffer pad. Can find them at most hardware stores. Here, they are color coded for different densities. A bit pricey compared to other options, but cheaper than the rolls of pond media that looks similar ... I think we pay something like $12-13 per floor buffing pad... The white chunk in the lower left is just a cut piece of the buffer pad ...
The other 3 "piles" all came from the Dollar Tree store ... beggars cant be choosers LOL ... top left (green ones) are really thin .. takes 4 of them to equal the thickness of the buffer pad (5 per pack for $1) ... the blue one ... that came as a 2 pack ... almost as thick as the buffer pad (2 pack for $1) ... I wanted more of this one, but all out ... the pink and blue ones below the blue pad ... another 2 pack ($1) ...
Nearly anything with a surface bacteria can grow on, that wont decompose can be used. In another filter, hubby has cut up pex tubing .... I've seen others cut up pvc pipe scraps ... use what you have on hand. We were getting low items to use, so more or less cleaned the Dollar Tree out of scrubbies for this one.