Planted Tank Enthusiast
Join Date: Oct 2011
Location: Blaine, Minnesota
I've currently got a little Firemouth cichlid that keeps eating my black-blast (fine sand) substrate and blowing it through his gills. It hasn't hurt him yet and he won't stop.
Thinking way back (15+ years ago now) I had a black-moor goldfish get a pebble stuck in it's mouth. I had to use needle nose pliers and pull it out before he suffocated to death. He survived and went back to eating substrate. . . . thus far, gravel has proved more dangerous than fine grit.