The world’s smallest fish species, Paedocypris progenetica, is a fascinating member of the carp family found in the peat swamp forests of Indonesia. Measuring just 7.9 mm (0.31 inches) at adulthood, it holds the record as one of the smallest vertebrates on Earth. With a nearly transparent body, this tiny fish blends effortlessly into its surroundings and thrives in highly acidic water... https://fishingproo.com/worlds-smallest-fish-species/