Amphibians can live both in aquatic nd terrestrial region but fishes cannot
fish can live in only aquatic region
2 5 2
Amphibians can live in water or land environments, as long as the land environment is moist enough for them, while fish can only live in the water. Their gills are specifically designed to filter oxygen from the water. Amphibians are advanced than that of Pieces or Fishes ... hope this was helpfull for you 

1 5 1