DENVER (AP) — A fancy-looking French angelfish that was found one day with a funny float has its buoyancy back after taking some time from its tropical trappings to get a CT scan at the Denver Zoo.

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The approximately seven-inch (18-centimeter) fish was sedated, balanced upright on a sponge and had water poured over its gills to keep it alive as the scan took place. The diagnosis: Too much gas.

This image provided by the Denver Zoo on Monday, Sept. 4, 2023, shows a CT scan of a French angelfish. A zoo worker noticed the blue and yellow fish was swimming with a tilt.

This image provided by the Denver Zoo on Monday, Sept. 4, 2023, shows a CT scan of a French angelfish. A zoo worker noticed the blue and yellow fish was swimming with a tilt.

Fish with a funny float gets a CT scan at the Denver Zoo. September 5, 2023 / 2:17 PM MDT / AP Angelfish at Denver Zoo swimming upright again after treatment .