This ability develops over time: hatchlings rely on their gills, but adults gulp air ... and swim bladder disease. While Betta fish can tolerate dirty water for a short period, long exposure ...

Bettas are one of the most popular fish species. Most people consider them relatively active, but this isn’t always true.

SINGAPORE – A new study in Singapore found that Betta fish – also known as Siamese fighting fish – should be kept in a minimum tank size of 5.6 litres when displayed for sale and it should ...