Rainbow trout are gorgeous fish, with coloring and patterns that vary widely depending on range, habitat, age, and spawning condition. They are torpedo-shaped and generally blue-green or yellow-green in color with a pink streak along their sides, white underbelly, and small black spots on their back and fins. The rainbow trout is a member of the family of fishes that also includes salmon, char, and grayling. They can live in the wild up to 12 years, but average 4-6 years. Rainbow trout are raised in aquaculture in the U.S., making this fish a local sustainable seafood choice for Tennessee.