I think I'd like a tank the size that would be comfortable for that 'lil' guy! LOL! Then I could practice my scuba diving skills.........at home! LOL!!
Used to buy wholesale for a pet store I worked at and saw them. They were only about and inch or so long then. Put them in my 100 gallon tank. They were great to watch but I think they kinda scared my other fish. They swim very fast back and forth across the tank in a tight school. Only kept them for a while and got rid of them. They do grow very fast and are very competitive at feeding time.