I lived in LA for 16 years, and they have quite a few fish stores but never was able to get into a "warehouse". One fish store though that was really neat is called Kyotos, its in Korea town located off of Wilshire Blvd, not sure if it is still around though but was owned by a very old Korean man and he always had some rare fish and inverts there for very cheap. The place was like walking into that place in Gremlins lol.