Lilaeopsis brasiliensis, commonly known as micro sword or Brazilian micro sword, is a low-growing foreground carpeting aquarium plant ideal for creating lush green lawns in aquascapes. With fine, grass-like blades and a slow but steady spread, this dwarf grass aquarium plant is well-suited for both nano tanks and larger planted setups. Whether you’re building a high-end Iwagumi layout or a beginner’s low-tech tank, Lilaeopsis brasiliensis offers versatility, aesthetic appeal, and ease of use. Available in Tissue Culture and Emersed formats, this Plant Passport delivers complete Lilaeopsis brasiliensis care including planting instructions, tank conditions, growth rate, and usage tips.
1. Basic Information
- Trade Name: Brazilian Micro Sword, Dwarf Micro Sword
- Scientific Name: Lilaeopsis brasiliensis
- Common Names: Lilaeopsis, Micro Sword Grass, Dwarf Grass
2. Botanical Profile
- Family: Apiaceae
- Genus: Lilaeopsis
- Species: brasiliensis
- Etymology:
- Lilaeopsis = “Lily-like appearance” (Greek origin)
- Brasiliensis = Named after Brazil, its country of origin
- Endemic Region / Origin: South America (primarily Brazil)
- Natural Habitat: Shallow streams, marshes, and riverbanks with soft silty substrate
- Growth Habit: Spreads via runners; forms short, grass-like carpets
- Leaf Description: Narrow, upright blades 3–5 cm in height with a bright green color
3. Aquarium Suitability of Lilaeopsis brasiliensis
- Ideal Placement in Aquascape: Foreground or low midground
- Compatible Aquascaping Styles:
- Iwagumi (natural grassy carpet look)
- Nature Aquarium (meadow-style spreads)
- Dutch (low accent greenery)
- Biotope (South American layouts)
- Growth Speed: Slow to moderate
- CO₂ Requirement: Low to Medium (optional in low-tech tanks, faster with CO₂)
- Lighting Needs: Medium to High
- Nutrient Requirements: Rich substrate with occasional water column dosing
- Temperature Range: 20°C – 28°C
- pH Range: 6.0 – 7.5
- GH/KH Preference: GH 3–10, KH 2–6
- Substrate Requirement: Fine-grain or enriched soil for better root and runner development
4. Planting Tips for Lilaeopsis brasiliensis
For Tissue Culture Format:
- Rinse off the gel medium under clean, dechlorinated water
- Separate into 10–15 fine tufts using aquascaping scissors
- Use tweezers to plant individual tufts at 2–3 cm spacing
- Maintain low flow for the first 7–10 days to help root anchoring
For Emersed Format:
- Remove excess rockwool or potting material gently
- Trim yellowing or long outer blades
- Plant plugs into substrate with minimal burial; do not bury the crown
- Initial melting may occur but regrowth begins within 10–14 days
5. Care & Maintenance of Lilaeopsis brasiliensis
Maintenance Tips:
- Encourage runner spread by trimming tall blades periodically
- Avoid shading from tall background plants
- Remove decaying leaves to prevent algae buildup
Trimming Frequency:
Every 3–4 weeks, or as needed for shaping
Common Issues & Prevention:
- Slow growth in low light: Supplement with moderate light or CO₂
- Melting post-planting: Avoid drastic parameter shifts
- Stunted spread: Use root tabs or enriched substrate for consistent runner formation
Tissue Culture Transition Tips:
- Use medium light during the first week
- Supplement potassium to reduce stress
- Avoid planting in zones with strong water flow initially
Melting Risk After Planting?:
Low to Moderate, depending on lighting and CO₂ availability
How Long Before Visible Growth?:
14–20 days with CO₂, 3–4 weeks in low-tech setups
6. Compatibility & Use of Lilaeopsis brasiliensis in Aquascapes
- Safe for Shrimp? ✅ Yes
- Can be Used in Emersed Setups? ✅ Yes (great for paludariums and Wabi-Kusa)
- Can Be Grown in Terrariums/Paludariums? ✅ Yes, if substrate stays moist
- Ideal for: Beginners to Intermediate hobbyists
- Plant Difficulty: Easy to Moderate
- Best With Other Plants:
- Eleocharis acicularis
- Micranthemum tweediei (Monte Carlo)
- Cryptocoryne parva
- Best With Fish/Shrimp:
- Cherry shrimp
- Otocinclus
- Ember tetras
7. Plant History & Interesting Facts about Lilaeopsis brasiliensis
- Frequently used as a low-maintenance alternative to Glossostigma
- Known as an aquarium grass for beginners due to its manageable care profile
- Can form very dense lawns under strong light and CO₂, or slow natural carpets in low-tech tanks
- Perfect carpet plant for nano aquariums because of its short height and clean growth form
8. Quality & Trust Emphasis (Aqua Matsya Signature Section)
What Makes This an Aqua Matsya Choice:
- Offered in pristine tissue culture and emersed pots for all tank types
- Grown in controlled environments to ensure disease- and algae-free supply
- Selected for its compatibility with low-maintenance aquariums
Hobbyist Trust Indicators:
- Thrives in both low- and high-tech setups
- Dense, vibrant growth with regular maintenance
