Of all the things the Exo had been prepared for, flying, seemingly magnetized fish was not one of them. He's watching the child as the little one in turn seems to be biding his time. Holding his hand out? Maybe he's preparing for a lunge.

And then the fish comes right out of the water as though on some invisible tether, right into the kid's hand.

"WHOA!" Cayde yelps, and then again when the kid almost immediately stuffs the still flailing fish into his face. "Damn kid, I figured you were hungry but I didn't think you were starved!" He can't help but stare as he eases away from the tank a little, shifting the kid in his arms so he won't still be dangling over the water. Not that it seems the green one cares.

"Uh. Good job?"