An interesting statement from the fellow who sold me the crayfish:
He said that crayfish don't actually have gills. They grab bubbles from the water and inhale them. I had never heard of that but haven't verified the info yet either. I was previously concerned that my new pond didn't have enough dissolved O2. Now I'm also concerned that I need to buy a bubbler for it.
Last edited by czimmerm; 07/16/21 04:07 PM.
