Lomariopsis lineata
Often called "round pellia" — a soft, branching fern gametophyte that drapes over rock and wood. Light green, undemanding, tolerates shade and low CO₂ unlike most aquatic plants. The right choice for shaded crevices where mosses look untidy.
Süßwassertang (Lomariopsis lineata) is a epiphyte (fern gametophyte) aquatic plant for the tied to hardscape of a planted tank. It reaches 5–15 cm under good conditions and grows at a slow rate. Light: low to medium. CO₂: optional. Target 18–28 °C, pH 5.5–7.5, and 1–15 dGH. Substrate: Not planted — tied to stone or wood with cotton thread.. Propagate via pull off clumps and re-tie.
Care at a glance
Often called "round pellia" — a soft, branching fern gametophyte that drapes over rock and wood. Light green, undemanding, tolerates shade and low CO₂ unlike most aquatic plants. The right choice for shaded crevices where mosses look untidy.
Updated 1 min read
Part of our complete guide to the planted aquarium.
Leaves yellowing, pitting, or new growth coming in pale or twisted? Work out what it’s short of in our plant deficiency guide.
The parameters that decide whether süßwassertang fits in your tank.
Lomariopsidaceae
Epiphyte (fern gametophyte)
Tied to hardscape
Not planted — tied to stone or wood with cotton thread.
Pull off clumps and re-tie
Tropical regions worldwide (uncertain provenance)
Tropical regions worldwide (uncertain provenance)
Tank-mate safety and the species this one is documented to thrive (or fail) alongside.
Weighing it against something similar? Compare Süßwassertang head to head:
Direct answers to the questions search engines and AI assistants surface most often about this species.
CO₂ requirement: optional. Light requirement: low to medium. Under low-tech conditions the plant grows at a slow rate.
Süßwassertang (Lomariopsis lineata) needs low to medium light. Run a photoperiod of 6–8 hours; longer photoperiods invite algae unless CO₂ and dosing are dialled in.
Position: tied to hardscape. Substrate: Not planted — tied to stone or wood with cotton thread. It typically reaches 5–15 cm.
Propagation method: Pull off clumps and re-tie. Süßwassertang is a epiphyte (fern gametophyte) plant.
Target 18–28 °C, pH 5.5–7.5, and 1–15 dGH. Flow tolerance: low.
Difficulty: 1/5. Almost unkillable, a solid first-tank choice.
A planted tank is a system. Pair this plant with one entry from each other pillar to plan the whole scape.
