If you're looking for Cichlids, Fancy Plecos, or other rare fish, Fish R Us is THE place to go. Its in The Woodlands, just up I-45 to hwy 242. Take a right on 242 and its a few miles down on the left, under the giant LED sign. BB Tropical Fish has the wildest saltwater selection I've ever seen, but their freshwater selection isnt great. I still go by there every weekend just to see if he's gotten anything new, though.