The Paedocypris progenetica is now the world's smallest fish on record. It has been discovered by scientists in forest swamps of Indonesian Island of Sumatra that is only 7.9mm long. It is considered as the world's smallest vertebrate or backboned animal and is a member of a carp family. Paedocypris feed on plankton on pools of extremely acidic water in tropical forest swamps.
Before, the world's smallest fish which is Pandaka pygmaea was found in the Philippines in Malabon river but now, it is no longer considered to be one.
