Lightest fish
- Who
- Unknown
- What
- 0.002 gram(s)
- When
- 01 January 0001
The lightest of all vertebrates is the dwarf goby (Schindleria praematurus) which weighs only 2 mg (equivalent to 14,184 to the ounce) and is 12–19 mm (0.47–0.74 in) long. It is found throughout the Indo-Pacific.