Hans, the Aquarium's resident sand tiger, hasbeen a part of the Aquarium family for 12 years. He knows the ins and outs of Aquarium life! Sand tiger sharks can range 6.5 to 10.5 feet in length. Hans measures a little more than 6.5 feet. If you have any questions about sharks or the Texas State Aquarium, send Hans an email. He's our expert!