UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Caledonia Stone
A marbled grey, brown and cream stone that sits somewhere between Seiryu and Elephant Skin. Pieces tend to be chunky and boulder-like, good for height or for borders.
Updated
Best for
Layouts that need tall, chunky stones rather than flat or pointed ones.
What stands out
- 10, 20 and 30 lb lots
- Marbled grey with brown and cream
- Boulder-like shapes for height
- Useful for building borders and retaining edges
Models and specs
| Model | Weight |
|---|---|
| 10 lbCAS0010 | 4.5 kg |
| 20 lbCAS0020 | 9.1 kg |
| 30 lbCAS0030 | 13.6 kg |
- Brand
- UNS
- Effect on water
- Not stated by the seller; do a vinegar fizz test and check KH/GH before use
- Colour
- Grey, brown and cream marbling
- Texture
- Chunky with fine grooves
- 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 Caledonia Stone, drawn from its specs.
Does Caledonia Stone affect water chemistry?
Not stated by the seller; do a vinegar fizz test and check KH/GH before use.
How do I prepare Caledonia Stone before use?
Rinse and scrub well before use
Who is the UNS Caledonia Stone best for?
Layouts that need tall, chunky stones rather than flat or pointed ones.
What are the alternatives to the UNS Caledonia 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.