RO Plankton
Class Normal
Level 40
Size Small
Type Plant
Element Water
Natural Habitat Prontera Culverts, Byalan Island

Plankton is a single-cell creature drifting on the water that is a food for fishes.[1] Even though they seem insignificantly small, be careful not to step on them. Plankton are light and can drift on the water.[2]


  • Plankton are organisms that live in the water column.[3] This monster is one of the few in Ragnarok Online that actually matches a real-life incarnation in both name and form.


  1. iRO Monster Library 2008 Jun.
  2. Prontera Monster Encyclopedia
  3. Plankton Mar. 2013

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