What eats acrylic?
Dear Bob, A quick thank you for all you’ve done for us “salts” out there. I reference WWM frequently and often and thank you and Lorenzo for all the time, effort, and sage advice you’ve devoted to people’s better understanding of the life forms and biotopes they keep. I have a question regarding what I believe to be radula marks etched into the surface of an acrylic tank. I recently helped a friend break down his 40 gal. tank (SeaClear or Truvu, I’m not sure which). He had (sadly) neglected any maintenance on the system since his last specimen died some two years ago, only adding top off water. Needless to say it was a huge mess, but somewhat of an interesting study from a scientific perspective. As I began to scrape of the thick filamentous algae covering all sides of the tank, I noticed a haze on the front panel. Upon closer inspection, this haze was a pattern of etchings in the acrylic surface! The pattern matches that which I have seen snails (esp.
