Usually just taking it outside with a hose to rinse it out works well. We offer the F10 disinfectant on our website, but a good hose down of the tank would work just fine for rinsing out the bleach. You should be able to stick your own head into the tank and take a deep whiff of the air in there - if you're not comfortable putting your head in there to take a smell, you shouldn't put your snake in it.
-Jen