London, England: Close shot of a lionfish with needle-like spikes swimming slowly amongst rocks in aquarium at Chessington Sea Life Centre.

London, UK: General views of penguins walking, diving and swimming underwater in purpose-built ice enclosure.

Various of jellyfish moving in clear (blue) water.

China: Close shot of a bright pink jellyfish with trailing pink tentacles swimming inside a tank (not seen) the surrounding water is bright blue.

Various good shots of mushroom shaped white jellyfish in a watertank.