>>120514316I'm unsure if it was intentional, but it might've been to show how unsuitable the fish were for being kept at the dentist. Moorish idols, like Gil, typically don't fare too well in captivity despite looking really fucking pretty. They don't ship well at all, and they also include live sponge as a major part in their diet. Not saying that nobody kept them, but they were considered really hard to keep alive. Especially back when the movie was made. Putting a moorish idol in the plastic/ gravel nightmare tank at the dentist would be a death sentence.
Also that dentist was a terrible fish keeper. Put a moorish idol with a tang in a small tang. Threw in a freshly caught wild fish with who knows what diseases with no quarantine whatsoever. Not to mention the puffer would murder everything in the tank. Especially the cleaner shrimp. Also giving his niece who couldn't even keep a goldfish alive a saltwater fish.