UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Flat Bottom Dragon Ohko Stone
Ohko (Dragon) stone formations with a cut flat base so they stand straight up without propping. Drop one in for an instant rock scape, or combine several for a bigger tank.
Updated
Best for
Quick, stable rock layouts in small cubes (the seller pairs S with 25 cm and M with 30 cm cubes).
Worth knowing
Each piece is unique and fairly pricey for the amount of stone.
What stands out
- Two sizes, about 19 cm and 28 cm tall
- Flat base, no need to wedge or glue
- Classic Ohko scale texture and golden-brown colour
- Tall enough to break the surface in small tanks
Models and specs
| Model | Dimensions (L × W × H) |
|---|---|
| SFBDS201A | 19.1 × 11.4 × 19.1 cm |
| MFBDS201B | 27.9 × 12.7 × 27.9 cm |
- Brand
- UNS
- Effect on water
- Inert
- Colour
- Golden brown and orange
- Texture
- Scaly, cratered, clay-like
- Origin
- China
- Prep
- Rinse well to remove dust
Figures from Glass Aqua's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
What dragon stone does to your water
Inert. It does not measurably change pH or hardness, so it suits soft-water tanks, shrimp and blackwater scapes without any of the buffering that seiryu brings.
Full Dragon Stone guideCompare with
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Budget-friendly builds, nano tanks and moss-covered scapes that need plenty of stone volume.
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Black Lava Rock Cave
Shrimp and nano tanks that need hiding spots, or scapers wanting planted pockets at different heights.
4 models
Frequently asked questions
Quick answers about the UNS Flat Bottom Dragon Ohko Stone, drawn from its specs.
Does Flat Bottom Dragon Ohko Stone affect water chemistry?
Inert.
How do I prepare Flat Bottom Dragon Ohko Stone before use?
Rinse well to remove dust
Who is the UNS Flat Bottom Dragon Ohko Stone best for?
Quick, stable rock layouts in small cubes (the seller pairs S with 25 cm and M with 30 cm cubes).
Is there anything to watch out for with the UNS Flat Bottom Dragon Ohko Stone?
Each piece is unique and fairly pricey for the amount of stone.
What are the alternatives to the UNS Flat Bottom Dragon Ohko Stone?
Other hardscape worth comparing: UNS Ancient Stone, UNS Ashen Stone, UNS Black Lava Rock. Add any of them to the compare table to see the specs side by side.