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Paedoccypris which is found in the Philippines that belongs to the smallest group of fishes is the Paedocypris. There are few sightings in Malaysia and Indonesia. This is said to be one of the smallest of all smallest fishes which measures only 7.9 mm up to 10.3 mm. If you want to see this creature swimming around, it might be a little impossible as it usually stays in swamps where waters are dark colored.