Has anyone used the Microbubble airstones by Rena?
I have the 2inch and I would like to know how ot clean it. They apparently last forever but can be re-used (so I'm assuming cleaning?).
How does one go about cleaning them? They are ceramic I believe. Mine is just covered in brown stuff and a toothbrush hasnt worked.
I have the 2inch and I would like to know how ot clean it. They apparently last forever but can be re-used (so I'm assuming cleaning?).
How does one go about cleaning them? They are ceramic I believe. Mine is just covered in brown stuff and a toothbrush hasnt worked.