Norwalk or Mystic aquarium?

I’m thinking of going to an aquarium this weekend but can’t decide between the two. I haven’t been to Mystic in years since before COVID but I haven’t ever been to Norwalk. I’m closer to Norwalk by about 20 min but I wouldn’t mind driving to Mystic. There’s about a $5 price difference with Mystic being more expensive. I’m just trying to see which would be worth it before we spend $80 for Norwalk or $90 for Mystic.