Where is the best place to buy fancy goldfish in Atlanta?

I just lost one of my goldfish because the person who was taking care of my two goldfish while I was out of town overfed them by at least 400%, causing huge nitrogen and ammonia spikes. He got fin rot from the stress and even though i got all the levels stabilized and fed him medicated food, he just got worse and I had to euthanize him.

Now his buddy is lonely and sulks in the corner, only getting excited for food. So, I’ve decided to buy another goldfish, since they are a schooling fish.

I would like to find a good aquarium shop that has a nice selection of quality fancy goldfish. Ideally I want to find a ranchu or a lionchu. But, a Black or panda moor would be nice too.

I don’t want to buy a fish from petsmart or petco or pet supermarket, or any of those places. Their goldfish are terribly unhealthy and usually stunted, especially their ranchus which they never have more than 2 or 3 of.

I live near Little 5 Points and Decatur off of Ponce, so if there is anywhere particularly close, that would be best.

thanks for the help.