A nice blue jellyfish I snapped a pic of at the Houston Zoo. Not to spectacular visually, but it was a bitch to shoot well because it was in a cylindrical tank open on all sides, so between trying to catch it when it wasn't distorted by the tank and not getting other people's faces in the background... it was fun to take. |3
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Sludgetown
I've been there and had that exact same problem (might actually have been the Houston Aquarium - I know I've been to both but can't remember which one had the troublesome jellyfish). Photographing anything in a tank is hard.