I was thinking, and I came up with an alien race, which enthralled me. I was just wondering if these creatures would plausibly evolve this way. (Info dump time

These aliens are humanoid. While they possess two arms like humans, they have two or four tentacle-like appendages. These come out of the sides of their body similar to extra arms. These tentacles are about two inches thick and end in a flat disk-like Palm. Attached to each palm are five equidistantly spaced fingers. However, these tentacles are not very strong.

The tentacles are capable of producing electric shocks of about as much as an electric eel. Possibly a little less. Also, this species sees a lot more of the light spectrum than humans, but doesn't have as much range.

These creatures are also hairless, slightly translucent, and have a very large amount of pigments (skin and eyes). They are bioluminescent, and their skin tints their luminescence. They have no nails, and their feet don't have individual toes. (The fingers on their non-electric arms are tough.)

EDIT

I previously said that other than what's mentioned above, these creatures are like humans. However, these creatures produce eggs, so females I'll have their differences...

What kind of environment would support these creatures and their adaptations? For instance, would they hunt mostly water creatures using their electric appendages? What kind of creature would prey on this species? If a few aspects are damaging to the survival for this race and have no logical explanation, feel free to mention it. Also, I think this species likely evolved from an electric fish or amphibian, so keep that in mind.