After reading some of the articles on the Native Fish Conservancy website, we collected a few small fish, plants, and other critters from Caddo Lake and set up a 20-gal. aquarium.  We've enjoyed it so much, and Caddo Lake has so many different kinds of fish, that we set up a second tank and a third and stocked them with more native Caddo Lake fish.

So far in our tanks, we've kept Bantam Sunfish, Dollar Sunfish, Warmouth (or Goggle-eye), Swamp Darter, Blackstripe Topminnow, Starhead Topminnow, Golden Topminnow and Ironcolor Shiner.  Other critters like the Crawfish and Freshwater Prawns are also quite interesting.

Swamp Darter, left