UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Brook Stone
A deep grey stone with white striations and jagged texture, in the same style as Ryuoh and Seiryu. It gives strong contrast against bright plants.
Updated
Best for
Iwagumi layouts that want a dark, striated Seiryu-style stone.
What stands out
- 10, 20 and 30 lb lots
- Deep grey with white veins
- Jagged, Seiryu-style texture
- Shapes suit Iwagumi
Models and specs
| Model | Weight |
|---|---|
| 10 lbMJBS12071 | 4.5 kg |
| 20 lbMJBS12072 | 9.1 kg |
| 30 lbMJBS12073 | 13.6 kg |
- Brand
- UNS
- Effect on water
- Not stated; Seiryu-like stones often raise KH and pH, so test before use
- Colour
- Deep grey with white striations
- Texture
- Jagged
- 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 Brook Stone, drawn from its specs.
Does Brook Stone affect water chemistry?
Not stated; Seiryu-like stones often raise KH and pH, so test before use.
How do I prepare Brook Stone before use?
Rinse and scrub well before use
Who is the UNS Brook Stone best for?
Iwagumi layouts that want a dark, striated Seiryu-style stone.
What are the alternatives to the UNS Brook 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.