depending on the species you're looking for of eel you can always locate one online. as far as local suppliers...well theres no way for me to know. depends on where you live, demand for the fish. most normal pet shops wont set aside an entire tank for a fish that may or may not sell. they want quick turn over. so dont expect to find one unless its donated by a hobbyist whose grown tired of the fish. and even then you have to be in the right place at the right time.