I've been searching for a character, probably during the Nu 52 era, that I vaguely remember. He was basically a temporary replacement for Aquaman. He was the son of a wealthy man. He started developing underwater powers, and weaknesses, as a teenager and lived in what was basically an aquarium.
I have a memory of a scene where he goes into the ocean and seeks out Atlantis. He meets Mera, who tells him that he may have the power to breathe underwater but that, at heart, he is a surface man.
So far, I can find no reference to the character. Does anybody know his name or what series it was? Thanks.