This is a weird question, how do I know if they're constipated? I haven't seen them poop but then again there was one strand of poop at the bottom of the tank this week... They used to go around with long strands of poop hanging and now I don't see it anymore. The only thing they eat is Tetra Sinking Pellets for Goldfish though I'm going to switch them to Omega One. Also as another question, are Hikari Algae Wafers a good regulator, will they relieve constipation? I don't have any frozen peas but I do have canned peas, does it matter where they come from?