Master of the Six Kings, my favorite of yours is Conchious, simply because the word "conscience" is hidden away in there, haha. I don't know if you intended for that pun to exist, but I personally really like it. Perhaps that could even tie into some overarching theme of "be conchious of protecting marine life" or something.
Of the names that I see people liking, Escarglow actually makes me a little nervous. For me, it's a bit too close to Escavalier and Magcargo. I think there are some other name ideas for snails that haven't been used, so I think relying on "escargot" is a bit unnecessary. But that's just my opinion; it seems like a lot of people really like that name.
EDIT: Ninja'd by the post above me, haha.