The ADA KUMU ST-04 – Lichen Stone is a decorative aquascaping rock set developed by Aqua Design Amano (ADA) as part of the KUMU Layout Materials series, designed for use in nature aquariums, planted tanks, and paludariums. This set contains carefully selected pieces of Lichen Stone, a unique aquascaping rock recognized for its natural texture and distinctive coloration patterns that resemble rocks covered with lichen in nature.

Lichen Stone is especially appreciated in aquascaping for its contrasting surface tones, which typically combine gray stone with subtle yellowish or greenish highlights. These natural color variations give the rock the appearance of being naturally weathered and aged, adding an authentic and organic look to aquascape layouts.

The ADA KUMU ST-04 set contains approximately 300g of small Lichen Stone pieces, making it ideal for nano aquariums, detailed aquascaping work, and finishing touches in larger planted aquarium layouts. These smaller rocks are commonly used as accent stones around larger hardscape elements, helping to create smoother transitions between rocks, substrate, and planted areas.

In aquascaping design, small stones like those included in the ST-04 kit play an important role in creating natural perspective and depth. By placing progressively smaller stones around main hardscape structures, aquascapers can replicate natural geological formations and erosion patterns, making the aquarium appear larger and more realistic.

The rugged and irregular texture of Lichen Stone also provides excellent surfaces for attaching aquatic mosses and epiphytic plants, such as Taxiphyllum, Riccardia, Bucephalandra, and Anubias. Over time, these plants can grow around the stone’s natural crevices, further enhancing the natural appearance of the aquascape.

Another advantage of Lichen Stone is its natural compatibility with planted aquariums. When properly rinsed before use, it is generally safe for freshwater aquariums and typically has minimal impact on water chemistry, making it suitable for a wide range of planted tank setups.

The ADA KUMU Layout Materials series was created to provide aquascapers with curated natural materials that simplify aquascape composition. These sets allow hobbyists and professionals to experiment with layout design, layering, and fine detailing without needing to source individual stones separately.

The stones included in the ST-04 kit feature natural gray tones with characteristic lichen-like highlights, which blend beautifully with aquatic plants, driftwood, and aquascaping substrates. Their distinctive appearance can add visual contrast and texture to both minimalist aquascapes and dense planted layouts.

These smaller rocks are especially useful for:

• Creating natural transitions between substrate and rock structures
• Enhancing perspective and depth in aquascapes
• Supporting larger hardscape elements
• Adding fine details around main stones
• Building realistic rocky landscapes in nano aquariums

Whether used in a nature aquarium, planted tank, or aquascaping layout, the ADA KUMU ST-04 – Lichen Stone kit offers aquascapers high-quality decorative stones that enhance realism and improve the overall visual balance of the aquarium.

Browse the Aquarium Catalog

All Items

Products

Wild Rhino Stone

Petrified Wood Stone

Sensei Stone

Light Pagoda Stone

Wio Dragonscale Wood

Wio Longhorn Wood L

ADA KUMU ST-02 - Ohko Stone

ADA KUMU ST-01 - Ryuoh Stone

ADA KUMU ST-03 - Yamaya Stone

ADA KUMU ST-04 - Lichen Stone

ADA KUMU ST-07 - Buff Layer Stone

ADA KUMU ST-09 - Black Lava Stone

Wio Nano Stone Ryouh

Wio Nano Stone Black Ryouh

Wio Stones Titan Bulk Mix

Wio Stones Elderly Bulk Mix

Rasamala Wood

Wio Tree

ADA Colorado Sand

ADA Brighty K

ADA Green Brighty Neutral K

ADA Green Brighty Mineral

ADA Green Brighty Iron

ADA Green Brighty Nitrogen