this is an Oceanglow, they have slits in their body that glow because of the plasma energy they have. They can use the plasma energy and shoot it out of their mouths for self defense.
If you want him please comment his name(Oceanglow names are difficult to come up with, their basically places in the ocean or something that glows.
e.g.
Spark, volcano, fluorescent)
Personality, and backstory. The deadline is tomorrowish.
NOW TOIPE