UNS · Wood
Accent Driftwood
Filling gaps and adding detail around an existing hardscape rather than as a main piece.
4 models
UNS · Wood
UNS Black Forest Spider Wood
A dark, charcoal-brown spider wood that keeps getting darker over time, unlike normal spider wood which starts pale. It releases little tannin and has the same twisting, root-like branches.
Updated
Best for
Moody, dark scapes where you want branchy wood that contrasts with bright plants.
What stands out
- Nano, S and M sizes from about 3 cm to 41 cm
- Dark charcoal-brown colour
- Low tannin release
- Twisting root-like branches for moss and epiphytes
Models and specs
| Model | Length |
|---|---|
| Nano | 3-10 cm |
| S | 13-30 cm |
| M | 30-41 cm+ |
- Brand
- UNS
- Effect on water
- Releases only a little tannin
- Colour
- Dark charcoal brown, darkens further
- Texture
- Twisting, knotted branches
- Buoyancy
- Floats at first; soak or weigh down
- Prep
- Soak (or boil small pieces) until waterlogged; weigh down if it floats
- Packs
- Singles, 3-packs and 5-packs
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 spider wood does to your water
Chemically close to inert, but it leaches moderate tannins early on, which tint the water a light tea colour and nudge pH down a touch, more so in soft, low-buffered water. The staining fades over weeks and with water changes.
Full Spider Wood guideCompare with
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Frequently asked questions
Quick answers about the UNS Black Forest Spider Wood, drawn from its specs.
Does Black Forest Spider Wood affect water chemistry?
Releases only a little tannin.
How do I prepare Black Forest Spider Wood before use?
Soak (or boil small pieces) until waterlogged; weigh down if it floats
Who is the UNS Black Forest Spider Wood best for?
Moody, dark scapes where you want branchy wood that contrasts with bright plants.
What are the alternatives to the UNS Black Forest Spider Wood?
Other hardscape worth comparing: UNS Accent Driftwood, UNS Amazon Wood, UNS Basin Driftwood. Add any of them to the compare table to see the specs side by side.