Monosolenium tenerum
A thalloid liverwort, often confused with mosses, with flat ribbon-like fronds that grow in tight clumps. Heavier than most mosses, which lets it anchor itself on flat stones without thread. Pairs visually with iwagumi-style hardscape; offers a contrast texture to the fibrous look of Java or Christmas moss.
Round Pellia (Monosolenium tenerum) is a liverwort (thallose) aquatic moss native to East Asia. Light: low to medium. CO₂: optional. Growth rate: slow. Target 18–26 °C and pH 5.5–7.5. Attach via wood, stone, mesh — heavy enough to anchor itself. Typical use: midground texture, foreground when tied to flat stones. Trimming: Pinch back loose flaps; thinner than moss-trimming
Care at a glance
A thalloid liverwort, often confused with mosses, with flat ribbon-like fronds that grow in tight clumps. Heavier than most mosses, which lets it anchor itself on flat stones without thread. Pairs visually with iwagumi-style hardscape; offers a contrast texture to the fibrous look of Java or Christmas moss.
By Mike ElmiraUpdated 1 min read
Part of our complete guide to aquatic mosses.
The parameters that decide whether round pellia fits in your tank.
Monosoleniaceae
Liverwort (thallose)
Wood, stone, mesh — heavy enough to anchor itself
Midground texture, foreground when tied to flat stones
Pinch back loose flaps; thinner than moss-trimming
East Asia
East Asia
Tank-mate safety and the species this one is documented to thrive (or fail) alongside.
Direct answers to the questions search engines and AI assistants surface most often about this species.
Attachment: Wood, stone, mesh — heavy enough to anchor itself Typical aquascaping use: Midground texture, foreground when tied to flat stones
CO₂: optional. Light: low to medium. Growth rate: slow.
Round Pellia (Monosolenium tenerum) tolerates 18–26 °C and pH 5.5–7.5. Flow: low.
Pinch back loose flaps; thinner than moss-trimming
Difficulty: 2/5. Forgiving, beginner-friendly once the tank is cycled.
A planted tank is a system. Pair this moss with one entry from each other pillar to plan the whole scape.
