Continue writing the next sentence in this paragraph:

How to keep a bamboo shark
Purchase a large tank.
The most important requirement for your new shark is that you buy a tank that is large enough. A small juvenile can be kept temporarily in a 30 gallon tank.
Very soon, however, you'll need a much larger tank : 180 gallons is the minimum size for these sharks. Bamboo sharks are bottom dwellers and will rarely come up to the top of the tank.