fatheadminnow
Fish Aficionado
I have kribs and cories in my tank with a sand substrate. When ever the fish grab a mouth full of sand, which they always do lol, they seem to munch on the sand and the sand begins to fall out of their gills? Are they just sifting the sand through to find food? Or is this some sort of method of cleaning their gills?
-FHM
-FHM







