Pleco damaging artificial decorations?

[HarleyK]

Howdy,

I have been toying with the idea of artificial rocks. But my plecos have been grinding on triple coated PVC pipes, and they have rubbed off all three layers of Krylon fusion paint. I just visited the public aquarium in Chicago and saw damage to their interior, I assume it was this pleco. Any other experiences with plecos and decorations? Thanks, HarleyK.

 

[HarleyK]

 

[Fishburner]

When my daughter was very young, she picked out those fluorescent colored ceramic castles for her tank. I eventually got a small Adonis Pleco and in a few months, I noticed the castle loosing its color, but not fading, just loosing color in patches. I came to the conclusion that the pleco was probably rasping at it. I removed the castling fearing that whatever dyes or chemical from the paint may have harmed the place or will cause issues later on if I kept the castle in there. It's now been a couple years past and the place is still alive and growing (slowly, but growing). And we still have the castle, just not in an aquarium setting anymore.