UNS · Stone
Ancient Stone
Iwagumi keepers who like the Manten look and want a slightly darker, more angular stone.
4 models
UNS · Stone
UNS Petrified Wood Stone
Fossilised wood that has turned to stone, so it looks like layered timber but behaves like rock. The banded brown, tan and grey tones work well alongside real driftwood.
Updated
Best for
Nature-style scapes that want a stone which ties visually into the wood.
Worth knowing
Very heavy for its size, so protect the glass when placing big pieces.
What stands out
- 5, 10, 20 and 30 lb lots
- Layered, wood-grain look in stone
- Brown, tan and grey banding
- Pairs naturally with driftwood
Models and specs
| Model | Weight |
|---|---|
| 5 lbPET0005 | 2.3 kg |
| 10 lbPET0010 | 4.5 kg |
| 20 lbPET0020 | 9.1 kg |
| 30 lbPET0030 | 13.6 kg |
- Brand
- UNS
- Effect on water
- Generally inert (silica based)
- Colour
- Brown, tan and grey bands
- Texture
- Layered, wood-grain
- 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.
What petrified wood does to your water
Inert. No tannins, no pH or hardness shift. It gives the wood look while leaving the water completely alone.
Full Petrified Wood guideCompare with
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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 Petrified Wood Stone, drawn from its specs.
Does Petrified Wood Stone affect water chemistry?
Generally inert (silica based).
How do I prepare Petrified Wood Stone before use?
Rinse and scrub well before use
Who is the UNS Petrified Wood Stone best for?
Nature-style scapes that want a stone which ties visually into the wood.
Is there anything to watch out for with the UNS Petrified Wood Stone?
Very heavy for its size, so protect the glass when placing big pieces.
What are the alternatives to the UNS Petrified Wood 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.