There is this nice place called Neptune aquatics in San Jose, California. They have so many saltwater tanks with fish but they also have a great selection of freshwater fish too. Equipment from them can be expensive but they have great fish such as good quality livebearers and many types of plecos and bettas and loaches and things I haven't even heard of! They have great fish food and I got a good deal on a splendid loach that would usually cost 65 dollars but I bought it for 30 bucks really nice place I recommend it. The staff are also very nice and know what they are doing!