Yes. There is the Middle TN reef club located in nashville. They do organized frag swaps 2-3 times a year. Once you join their club, you can access their classifieds and there are always frags for sale there. There really isn't a lot to chose from in the Clarksville area. Nashville is ok but not that much better. I haven't had the best of luck buying fish at Pet Palace but I've picked up a few pieces of coral there that has done well.