one fish stood out—it was pressed flat against the glass, revealing an uncanny human-like face on its underside. Its gills and mouth formed features resembling eyes and a grimacing expression ...

then go to step 4 If fish has one eye on each side of the head, then go to step 5 If fish has a v-shaped tail, it is a squirrel fish If fish has a blunt tail, it is a glass-eye snapper ...