Crystal jellyfish, also known as Aequorea victoria, are a bioluminescent species of jellyfish and this week's #SpeciesSpotlight - Crystal jellyfish can emit light and glow in vibrant green or blue hues due to special proteins - These delicate creatures have up to 150 tentacles and their bell-shaped bodies can grow up to 25cm in diameter. Fine white lines extend from the centre of their bells, adding to their ethereal appearance - Crystal jellyfish feed on other jellyfish, including comb jellies,