UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Mountain Stone
A light, porous brown stone with a gritty surface that grips well. Because it is low density you get more pieces per pound than with Seiryu or Hakkai.
Updated
Best for
Cliff and canyon scapes that need lots of stone without lots of weight on the glass.
What stands out
- 5, 10 and 20 lb lots
- Earthy brown tones
- Porous and lightweight
- Stacks well for cliffs, caves and canyons
Models and specs
| Model | Weight |
|---|---|
| 5 lbMTN0005 | 2.3 kg |
| 10 lbMTN0010 | 4.5 kg |
| 20 lbMTN0020 | 9.1 kg |
- Brand
- UNS
- Effect on water
- Not stated; light porous rock like this is usually inert, but test before use
- Colour
- Earthy brown
- Texture
- Gritty, porous
- 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 Mountain Stone, drawn from its specs.
Does Mountain Stone affect water chemistry?
Not stated; light porous rock like this is usually inert, but test before use.
How do I prepare Mountain Stone before use?
Rinse and scrub well before use
Who is the UNS Mountain Stone best for?
Cliff and canyon scapes that need lots of stone without lots of weight on the glass.
What are the alternatives to the UNS Mountain 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.