|Level|| 34 (RO)|
|Type|| Plant (RO)|
|Element|| Water (RO)|
|Natural Habitat||Amatsu fields, Ruande Cave, Mao Cave, Payon Cave, Sunken Ship, Byalan Island, Temple of the Sea God|
Hydra is a sea flower monster that makes roots in a long range under the ground despite its small size. It attacks living things in a distance using the roots. As vegetable monsters that live near water or in the deep sea, they attack using tentacles. As a group, they're a pain in the ass.
Ragnarok Online II
In RO2, this monster can only be found in dungeons.