I thought it would be fun to hear about everyone's fav non-chain LFS. There are lots in SA, TX but mine is FINTIQUE, it's been around forever, at least 40 years. It ia a very old building with a large fish room with rows of individual 20, 30 and 55 gallon tanks (I hate central filters), no frills; non-jumping fish don't even have lids. Great prices, basic fish like tetras and such are usually under $1, often 3 for a discounted amount. They also get a changing variety or rarer and exotic fish, you never know what will turn up. They have a smaller marine area, plants and live foods. They sell some birdseed and small animal items, otherwise they are totally fish.
I am devoted to the store, the fish are always healthy, I very seldom buy a fish anywhere else
The downside of the place is they have very screwy hours, closing at 4, 5, 6 and even 2 on different days. The shop is across town from me, and I often seem to stop in at the wrong time :)