So Albert, our Valentini Puffer has become lethargic the last two days. He used to be an active swimmer and a great eater. I know it is not his teeth - he gets lots of clams to chomp on (and I keep a close eye to see if his teeth are visible). All water perimeters are in check and salinity is good too. The only difference in the tank is a new clown fish. Not sure what to do...help, he's our favorite!
