Originally Posted by jennandjuicetm
Thank you for this conversation! What do you think about putting a fairly fine sponge on the outside and inside the PVC
using ceramic media? Although, there wont be much room inside the PVC
but I could use a 3/4".
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What I would do is use 2" PVC
as the main body of the filter, maybe 4-6 inches tall, capped at bottom end, threaded cap at the top drilled to fit a length of 3/4" PVC
Drill a bunch of holes into the 2" piece and then fill with bio-media of your choice. then wrap sponge material around the outside of it and run an airline down the 3/4" pipe and you're done.
you could also use black ABS pipe if you don't like the stark white of PVC
as you can see this is a basic idea that can be tweaked myriad ways to fit your particular needs.