UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Manten Stone
A rugged mountain stone with a very varied grey-brown palette. Its inconsistency is the point: no two pieces match, which helps build believable mini mountain scenes.
Updated
Best for
Iwagumi and mountain layouts in soft-water or shrimp tanks where you want a natural-looking stone that leaves chemistry alone.
What stands out
- 5, 10, 20 and 30 lb lots
- Varied grey, brown and tan tones
- Rugged, irregular shapes
- Inert, so safe for sensitive livestock
Models and specs
| Model | Weight |
|---|---|
| 5 lbMAN0005 | 2.3 kg |
| 10 lbMAN0010 | 4.5 kg |
| 20 lbMAN0020 | 9.1 kg |
| 30 lbMAN0030 | 13.6 kg |
- Brand
- UNS
- Effect on water
- Inert (per seller)
- Colour
- Varied grey, brown and tan
- Texture
- Rugged, irregular
- 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 Manten Stone, drawn from its specs.
Does Manten Stone affect water chemistry?
Inert (per seller).
How do I prepare Manten Stone before use?
Rinse and scrub well before use
Who is the UNS Manten Stone best for?
Iwagumi and mountain layouts in soft-water or shrimp tanks where you want a natural-looking stone that leaves chemistry alone.
What are the alternatives to the UNS Manten 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.