Dragon Rock (also commonly known as Ohko Stone) 1kg

Dragon Rock (also commonly known as Ohko Stone) is a clay-based sedimentary rock from Japan that is highly prized in the aquarium hobby for its detailed, scale-like texture. It features a unique, cratered surface that looks like dragon scales, making it a perfect choice for creating dramatic underwater mountains, caves, and canyon landscapes.

Key Features and Benefits

Inert Composition: It will not change your water chemistry. It does not affect pH or water hardness.

Safe for Livestock: Perfect for sensitive shrimp, community fish, and soft-water live plants.

Lightweight Structure: It is less dense than traditional volcanic or river rocks. You get more volume per kilogram.

Easy to Work With: Made mostly of hardened clay. You can break or chisel it easily to fit your nano tanks or build arches.

Plant-Friendly Texture: Deep pockets and crevices make it very easy to glue or wedge mosses, Anubias, and Bucephalandra.

Step-by-Step Preparation Guide

Because it is harvested from natural clay beds, dragon rock requires thorough cleaning before you place it inside your tank.

[Harvested Rock] ➔ [Initial Soak] ➔ [Crevice Cleaning] ➔ [Final Rinse] ➔ [Ready for Aquascape]

Initial Soak: Soak the rocks in a bucket of warm water for 24 hours to loosen packed mud.

Clean the Pockets: Use a screwdriver, toothbrush, or bamboo skewer to dig out dried clay from the holes.

Power Rinse: Blast the rock with a high-pressure garden hose or showerhead to wash away remaining dust.

Safety Check: Rub your fingers across the edges. Sand down any razor-sharp points that could tear fish fins.