Well it depends, there are so called aquatics specialists who sell usually fish and garden pond stuff, and there are the pet stores that sell mostly small mammals and a few reptiles. Amphibians will pop in both on occasion because they appeal to both fish people and reptile people. Very often the two stores will be combined or housed in the same complex, a garden center. Garden centers are pretty much an english thing I have not found them in America or any other european country. Big buildings in the middle of no where with a plant shop, pets, aquatics, ponds, swimming pools, groceries, and even food.