Cheap Canister Media

Im sure it has been said but scrubbies are my favorite. I could have saved so much a few years ago when I made a sump for my 100 gallon and bought bio balls and ehi substrat
 
Does bacteria attach itself to plastic like PVC? Also do you guys think this walnut stuff is fine for the tank?
 
I would be nervous about the walnuts.
 
I asked my dad and he said not to put the walnut scrubber part in the tank. So I'm just going to take a razor blade and cut that part off. Thanks guys!

Oh did I ever say how much I payed total for all 12 of those scrubbers?

.13 cents. They were on clearence for .1cent apeice + .1cent tax.
 
:thm::iagree::iagree:
those be the ones
 
This is probably a stupid question... but don't you guys also use activated carbon?
 
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