Tank is Caiman's pet dragon. He has an ankylosaurs-like appearance with green and yellow skin, brown spikes, cream horns, and red eyes.

A nervous, yet apparently more attentive dragon, Tank is often the first of the group to notice when something bad is going to happen and quick to act. He is also dimwitted, friendly, and forgiving. He is also slow moving and somewhat dimwitted but no less a friendly and caring dragon. He enjoys playing around and his master adores him.

Tank can spit fire balls. His skin is strong enough to withstand the pressure of a battle cruiser.

Trivia:

Tank gets his name from his tough skin.

Tank is the strongest of the dragons.