it is a surface for bacteria. i got pots in my aquarium but they're glazed. im not sure how long unglazed one last but mine has no probs. here's a pic. its great refuge and safe haven for my cats and knife fish.
here's the thread about the cat swallowing a piece of the pot, i know you said it shouldn't be a problem but i just thought it'd be kewl for others to see
http://www.monsterfishkeepers.com/forums/showthread.php?p=9217#post9217

here's the thread about the cat swallowing a piece of the pot, i know you said it shouldn't be a problem but i just thought it'd be kewl for others to see
http://www.monsterfishkeepers.com/forums/showthread.php?p=9217#post9217



