The elegant swimming motion of these fishes has been likened to the flight of butterflies fluttering in the garden. Butterfly fish tend to be brightly coloured, making them very popular as a marine fish in an aquarium.
Some species that subsist entirely on coral polyps in the wild are difficult to switch to a substitute diets. Good water parameters (quality) is absolutely vital when keeping any butterflyfish, since they will readily show signs of illness if the pH starts to fall, long before other fish sharing the same tank suffer.
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