Care at a glance
Technically the gametophyte stage of an aquatic fern, not a true moss. Forms dark green ruffled mats. Hardy and undemanding, a stealth favourite among aquascapers.
Updated 1 min read
Part of our complete guide to aquatic mosses.
Moss
Süßwassertang / Mini Pellia
Lomariopsis lineata
Tropical (origin unclear; first found in aquarium trade)Easy
TL;DR, Süßwassertang / Mini Pellia
Technically the gametophyte stage of an aquatic fern, not a true moss. Forms dark green ruffled mats. Hardy and undemanding, a stealth favourite among aquascapers.
Süßwassertang / Mini Pellia (Lomariopsis lineata) is a aquatic fern gametophyte (treated as moss) aquatic moss native to Tropical (origin unclear; first found in aquarium trade). Light: low to medium. CO₂: optional. Growth rate: medium. Target 20–26 °C and pH 5.5–7.5. Attach via wedge into crevices or tie under mesh. Typical use: crevice fillers and lush dark green carpets. Trimming: Trim with scissors every 4–6 weeks
Tank fit
The parameters that decide whether süßwassertang / mini pellia fits in your tank.
Parameters
15 °C20 °C25 °C30 °C
4.05.06.07.08.0
Low
Medium
High
None
Optional
Recommended
Required
Slow
Medium
Fast
V. fast
Still
Low
Medium
High
V. high
Profile
Family
Lomariopsidaceae
Type
Aquatic fern gametophyte (treated as moss)
Attachment
Wedge into crevices or tie under mesh
Typical use
Crevice fillers and lush dark green carpets
Trimming
Trim with scissors every 4–6 weeks
Habitat
A liverwort gametophyte, origin uncertain; cultivated worldwide
Tropical (origin unclear; first found in aquarium trade)
Who it lives with
Tank-mate safety and the species this one is documented to thrive (or fail) alongside.
Weighing it against something similar? Compare Süßwassertang / Mini Pellia head to head:
Pro tips
Hard-won lessons from the tank.
Stealth favourite among advanced aquascapers. Forms dense dark green mats in cool corners and rock crevices. No CO₂ required for steady growth. Slower than Java but more ornamental.
Things to watch for
What can go wrong and how to spot it.
Things to watch for
Failure modes, in order of how dramatic the fix is.
Algae
Algae issues
Less algae-prone than mosses but still possible.
Common mistakes
Common mistakes
1) Burying it — it has no roots and rots in substrate. 2) Confusing with true Riccardia 'mini pellia' (different plant). 3) Expecting fast growth — it's a slow steady creeper.
How to care for it
The practical routine, read top to bottom.
Tying / attachment
Wedge into crevices or tie under mesh. Floats otherwise — no roots or rhizoids.
Tank setup
Low to medium light, CO₂ optional. Hardy across parameters.
Background
Where it comes from, how it behaves, and the variants you'll see at retail.
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In the wild
Where it lived before it came home.
Origin · Tropical (origin unclear; first found in aquarium trade)
Tropical aquariums (origin unclear — first found in trade, not in the wild). Genetic studies identify it as a gametophyte of an aquatic fern, not a true moss or liverwort.
Emersed form
Cannot grow emersed — purely submerged.
Variants & identification
The named cultivars and the lookalikes worth flagging.
Variants
Standard form.
Identification
Dark green ruffled thallus that forms loose clumps. Looks like a miniature head of lettuce.
Sister species
Often mislabelled as a moss (it's a fern). 'Mini Pellia' is a colloquial name confusing it with Riccardia chamedryfolia (a different liverwort).
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
How do you attach Süßwassertang / Mini Pellia in an aquarium?
Attachment: Wedge into crevices or tie under mesh Typical aquascaping use: Crevice fillers and lush dark green carpets
Does Süßwassertang / Mini Pellia need CO₂?
CO₂: optional. Light: low to medium. Growth rate: medium.
What water parameters does Süßwassertang / Mini Pellia need?
Süßwassertang / Mini Pellia (Lomariopsis lineata) tolerates 20–26 °C and pH 5.5–7.5. Flow: low to medium.
How do you trim Süßwassertang / Mini Pellia?
Trim with scissors every 4–6 weeks
Is Süßwassertang / Mini Pellia beginner-friendly?
Difficulty: 2/5. Forgiving, beginner-friendly once the tank is cycled.
Sources & further reading
More mosses
See all mossesAdjacent specimens in the catalogue.
Cross-references
Build the rest of the tank.
A planted tank is a system. Pair this moss with one entry from each other pillar to plan the whole scape.
