I got lots and lots of sponge filters mostly hydro V I got about 50 from DW a few months ago.
And plecos love to chew on them.He gave me a roll of gutter guard to roll around any that go in tanks with big plecs to keep them from eating them.
Ive been cycling 5 sponges at a time in my oscar tank as my fishroom expands.He took offence to the practice yesterday and started using them as tetherballs.
So I guess Ill have to figure out a different way to do that.