I am new to shark keeping. I have a fish room now that I breed discus in, I know two different worlds.. It is 26 feet by 17 feet. I am looking to get in to rays and sharks I have about a 8ft by 6 ft space. What I am thinking of doing is either salt water or fresh water rays. If I do saltwater I would love to do rays and sharks. My problem is should I build a plywood tank if so 8 by 6 by 2 or is it ok to have a pond. If pond I could prolly do 8ft by 6 feet by 3 feet. I know it is more space for the pond . I like to view the sharks and rays though. What would the shark experts say her. Is it possible to keep a smooth hound.. If you had this space how would you set it up. what would be required to have for something along the lines of doing this. any good reads on what I should be looking into I like sharks that swim a lot and no much nocturnal. Any information would help thanks you shark freaks