Pelia Moss (Subwassertang)

Pelia Moss

Monosolenium tenerum

Pelia Moss is a distinctive liverwort known for its broad, forked green fronds and soft, cushion-like growth. Although commonly sold as a moss, Monosolenium tenerum is actually a thalloid liverwort, giving it a noticeably different texture from traditional aquarium mosses.

Its lush green growth works beautifully around rocks, driftwood and other hardscape, creating a natural, slightly wild appearance. Once established, Pelia can form dense cushions that add excellent texture and depth to a planted aquarium.

Plant Profile

• Scientific Name: Monosolenium tenerum

• Common Name: Pelia Moss / Pellia

• Plant Type: Liverwort

• Origin: Asia

• Growth Rate: Slow to moderate

• Difficulty: Easy

• Placement: Foreground, midground, wood and rock

• Height: Approximately 3–5 cm

• Temperature: 18–26°C

• pH: Approximately 5.0–7.5

• CO₂: Not required, but beneficial

• Light: Low to medium

• Propagation: Division

Growth & Appearance

Pelia develops flat, translucent green, branching fronds that overlap as the plant grows, eventually creating dense rounded cushions. Its relatively broad structure gives it a more substantial appearance than fine-textured mosses.

It can be used as a natural foreground accent or attached to rocks and driftwood. Because the fronds are delicate and can break apart easily, gentle water flow and secure attachment are recommended while the plant establishes.

Care & Maintenance

Pelia is adaptable and can be maintained without injected CO₂, making it suitable for low-tech setups. Additional CO₂ and balanced nutrients can encourage denser and more vigorous growth.

When attaching Pelia to hardscape, use thread, mesh or aquarium-safe glue to keep the plant securely in place. Avoid excessively strong flow, as loose pieces can break away and spread around the aquarium.

Regular trimming helps maintain a compact shape and prevents loose sections from accumulating debris or becoming detached.

Ideal For

Pelia Moss is particularly suitable for:

• Nature-style aquascapes

• Shrimp aquariums

• Nano planted tanks

• Rock and driftwood layouts

• Natural foreground and midground compositions

• Low-tech and CO₂-injected aquariums

Its dense structure can also provide grazing surfaces and shelter for shrimp and small aquatic livestock.