Jellyshock

"Jellyshock propels itself through the water using tiny electrical currents instead of moving its tentacles to swim."

ligthning miscrits

 jellybolt

"When Jellybolt's eye is closed, it blends almost perfectly with the water. It has startled many beachgoers by slowly opening its eye to reveal itself."

tesla fish "Tesla Fish sees using electrical currents that bounce back like sonar, and because of that it never opens its eye."

medustung

"When Medustung holds its four lightning balls above its head and merges them into one, it produces an incredible amount of energy."