(Looking at dog making sign of the cross.) Reminds me of why I stick to cats. Looks like a dog that I had once that my wife just had to have back in mid 1980's. Everything that could go wrong, went wrong. Vet bills, broken bones, unable to pee/poo outside, thought carpet was a chew toy, etc, etc, etc. Grrr. Other than that, cute puppy.
One thing I would do differently if I had another salt water setup is provide for a quarantine tank for both new arrivals and sick fish. Better to watch for trouble there and treat for illness, injuries, etc. then expose the entire tank to peril. (I speak from experience.)
