World’s Smallest Fish Species worldwide, Paedocypris progenetica has emerged as marvels among the carps, which happen to be found in peat swamp forests in Indonesia. Measuring at an adult length of 7.9 mm (0.31 inches), it is known as one of the smallest vertebrate species on the planet. It is well camouflaged within its surroundings due to its almost-transparent body and survives in ... https://fishingproo.com/worlds-smallest-fish-species/