UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Cueva Stone
A grey stone streaked with white and cream, with flecks of brown. It looks close to Ryuoh and Seiryu, with the same jagged texture that suits dynamic rockscapes.
Updated
Best for
Iwagumi and rock-led layouts for keepers who want a Seiryu look with more white contrast.
What stands out
- 10, 20 and 30 lb lots
- Grey with strong white-cream striations
- Colours deepen underwater
- Jagged, textured shapes for Iwagumi
Models and specs
| Model | Weight |
|---|---|
| 10 lbCVS0010 | 4.5 kg |
| 20 lbCVS0020 | 9.1 kg |
| 30 lbCVS0030 | 13.6 kg |
- Brand
- UNS
- Effect on water
- Not stated; Seiryu-like stones often raise KH and pH, so test before use
- Colour
- Grey with white-cream striations and brown specks
- Texture
- Jagged, textured
- Prep
- Rinse and scrub well before use
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.
Compare with
Browse all hardscape
UNS · Stone
Ashen Stone
Minimal or river-style scapes that want bright, soft stone against lush green planting.
3 models
UNS · Stone
Black Lava Rock
Budget-friendly builds, nano tanks and moss-covered scapes that need plenty of stone volume.
1 model
UNS · Stone
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 Cueva Stone, drawn from its specs.
Does Cueva Stone affect water chemistry?
Not stated; Seiryu-like stones often raise KH and pH, so test before use.
How do I prepare Cueva Stone before use?
Rinse and scrub well before use
Who is the UNS Cueva Stone best for?
Iwagumi and rock-led layouts for keepers who want a Seiryu look with more white contrast.
What are the alternatives to the UNS Cueva 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.