Editorial underwater photograph of Micro sword.
Underwater botanical studyAI-generated editorial image

Carpeting plant · Foreground

Micro sword

Lilaeopsis brasiliensis

True aquarium turf: flat grass blades a few centimeters tall that make the most literal lawn underwater.

DifficultyIntermediateLightMediumCO₂BeneficialGrowthSlow

01

Overview

Micro sword looks more like actual grass than anything else submerged, with narrow flat blades in honest lawn-green. It spreads by runner at a measured pace and, unlike taller grasses, holds its height without mowing games.

FamilyApiaceae
OriginSouth America
Growth formCarpeting plant
Typical colorGreen

02

Aquascaping use

Use it where the design calls for a domestic lawn rather than wild meadow, especially fronting classic community layouts. It frames sand paths and stone edges cleanly.

Nature aquariumJungleNano aquascape

03

Planting

Plant small tufts densely in fine substrate; sparse planting stretches the fill time badly. Keep early tufts firmly seated until runners anchor them.

Substrate note

Fine nutrient substrate

04

Light & CO₂

Medium steady light keeps turf density; CO₂ roughly halves the establishment time. In dim tanks it thins rather than climbs.

Light requirementMediumIntensity categories are comparative, not precise PAR targets.
Supplemental CO₂BeneficialAll aquatic plants use CO₂; this describes whether injection is needed.

05

Substrate & fertilization

Feed the roots with tabs across the lawn zone; the column matters less. Established turf coasts on modest upkeep.

Feeding behavior: Root feeder. Nutrient demand: moderate.

06

Growth, trimming & propagation

Rarely required for height; thin patches that thatch over time. Repair holes by transplanting runner-connected tufts.

Propagation method

Runner separation

07

Common problems

  • !Slow fill invites algae early
  • !Thins quietly under weak light
  • !Thatch builds in very old lawns

Where to buy

Bring Micro sword home

Grassy runners for a wild, lawn-like foreground.

As an Amazon Associate, Verdant earns from qualifying purchases.

SubstrateSourceMicro sword (Lilaeopsis brasiliensis)Shop on Amazon

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