Ruffnut

Ruffnut was one of Skykicker-the-hybrid's first fish. They were not a betta fish, unlike Blaze Jr., but they were a goldfish. They lived alongside a black moor called Toothless and another goldfish named Tuffnut.

Trivia

 * Skykicker-the-hybrid was a SuperDuperMegaUltra Fan of How to Train Your Dragon and the character of the same name back when this fish was adopted.