There were 7,626 Pet and Pet Supply Stores in the US in 2002. 8,813 in 2012, a growth of 16%.
There were 187 Pet and Pet Supply Stores in Georgia in 2002. 195 in 2012.
There were 23 Pet and Pet Supply Stores in Atlanta in 2002. 21 in 2012.
Per the US Census Bureau.
Now 21 is certainly less than 23, but it's nothing like zero.
Just looked 1 minute ago and there are 5 Petsmarts and 3 Petcos just in Atlanta. Are those 21 stores the US Census reported refusing to sell fish or are they "reef only" stores?