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Finneon is a small fishlike Pokémon with an ellipsoid body. The bottom half of its body is light-blue while the top half is black. A purple stripe runs across Finneon's horizontal length. This stripe can store sunlight, which allows Finneon to shine vividly at night. It has small blue pectoral fins, two black oval-shaped dorsal fins, and purple eyes. Finneon's most notable feature is the pair of caudal fins that resemble a pair of blue butterfly wings with purple spots. The bottom lobes of a female Finneon's tail fin are bigger than a male's.
Because of its wing-like fins and beautiful appearance, it is known as "The Beautifly of the Sea" and "finery fish". Finneon is considered a gorgeous sight to behold to anyone watching it. It lives in bodies of water, and it travels in schools, sometimes with Lumineon. Finneon is popular with divers, as result, it is found living in resorts that feed them. Wingull is a natural predator of Finneon.
Four Finneon appeared in Yo, Ho, Ho! Go, Popplio!, with one being wild and the other three appearing in a fantasy. Lana gave the wild one some food after capturing it by fishing. It was later captured by Team Rocket.
Finneon, the Wingfish Pokémon. Because of its twin-tail fins that flutter like wings when swimming, Finneon has been called "The Beautifly of the Sea."
What a gorgeous sight this Pokémon is as it swims with its long, pink-painted caudal fins fluttering behind it. Finneon's beautiful appearance has led to its nickname: "finery fish."
Game locations
This Pokémon was unavailable prior to Generation IV.
If you see the pink patterns on Finneon’s tail fins shining at night, that means it stored up plenty of sunlight during the day. Isn’t Finneon beautiful when it flutters its fins like a pair of delicate wings?
Finneon's large tail fins are similar to the freshwater butterflyfish, and they also resemble wings of actual butterflies. It also resembles a neon tetra or a cardinal tetra. Its strong leaps from the water's surface is a known behaviour in flying fish - including how they are easily picked off by birds while airborne.
Name origin
Finneon is a combination of fin and neon.
Keikouo is a combination of 蛍光 keikō (fluorescence) and 魚 uo (fish).