The mint poison frog is in all ways an average poison dart frog. Males reach about 0.75 inch long; females are slightly larger, up to an inch long or bigger. As the common name "mint poison dart frog" suggests, the green-and-black poison frog typically has mint-green coloration; however, they can also be forest, lime or emerald green, turquoise, pale yellow, or even cobalt blue. Many also have splotches of dark colors, ranging from wood brown to black.
Spotted at the Maritime Aquarium.