I've taken care of these guys before...

- you need at least a 100 gallon tank (200 gallons would be even better for it)
- their diet needs to be 60% veggies and 40% meat
- they are active when the feel like it (when you have food they get pretty hyper)
- need a water dish large enough for it to fully get into, the like to soak and swim occasionaly
- need to have enough substrate for them to burrow into
- they do not get spooked easily
- they can tolorate handling
- if you want to you can give it a supervised time to roam around a room (only if you are comfortable in letting it do that)

Best of luck!!