I actually really like that Era's first instinctive reply to someone "she liked" wasn't the human guy with the glasses but instead the manly fish. It adds to the comedy and world-building that she still actually considers herself to be a member of the underwater world instead of the terrifying surface world.
We're also not going to talk about how that other sea bass was burning dollar bills underwater, how the clam divers from previous chapters failed to notice they were scooping clams up from miniature traditional Japanese houses, how any of these fish smoke on the ocean floor, how that bear in a previous chapter got a honeypot, or why the fish all look completely different on land than they do underwater.
Because it doesn't matter, and the story's funnier this way.