I live in San Diego.
We have
-Fountains - one of the best, but the employees are hermits with little social skills
-Pet Kingdom - My favorite so far. They sell everything. I got a Johanna and Flyer Cichlid from them the other day. Very helpful and friendly.
-Pet Zone - Owned by an Asian couple. Got 2 green Severums from them the other day for $25 total. Very nice people. Very clean, crisp healthy tanks. But their supply is limited. They do carry a lot of Flowerhorns.
-Goldfish World - Lots of fish. Not the greatest variety though. Health wise, they could do a little better. The people are nice and very helpfull.
-Fish Haven - Lots of fish. Lots of variety. But Pricey and the owner kind of stingy.
-Tri City Tropical Fish - havent been there since they moved. Cant comment
-Encinitas Tropical Fish - Not been there, but they are horrible over the phone.
These are all in San Diego county