Plated Armorfish

Source
Plated Armorfish is a fish that can be fished in high level areas including Winterspring, Eastern Plaguelands, Dire Maul, Zul'Gurub, and Feralas. It has a higher drop rate during the night, while Lightning Eel has a higher drop rate during the day.

As a quest objective

 * Craftsman's Writ - Plated Armorfish (quest) (30 required)