How to Grow Microphyllus
iNaturalist
Microphyllus
Hemianthus micranthemoides
aquatic plantMicrophyllus is a popular aquarium plant known for its tiny, delicate green leaves and compact growth habit. It is commonly used in freshwater aquariums as a foreground or mid-ground plant and can also be grown as a terrestrial plant in humid conditions. The plant features creeping stems that develop numerous small leaves, creating a dense, attractive appearance.
When should you plant Microphyllus in your zone?
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Example Microphyllus timeline · Pittsburgh, PA (Zone 6b)
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Plant Microphyllus
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Microphyllus
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Aquatic plant - thrives in controlled aquarium environments with temperatures between 65-80°F (18-27°C)
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Get my Microphyllus timeline →Growth Stages
Acclimation
1-2 weeksPlant adjusts to aquarium conditions; leaves may appear pale or drop slightly
Maintain stable water parameters (temperature, pH, nitrate levels). Avoid drastic changes. Keep lighting consistent.
Establishment
2-4 weeksNew root development occurs; stems begin to stabilize and new shoots emerge from nodes
Ensure gentle water flow to prevent uprooting. Provide balanced fertilization. Monitor for nutrient deficiencies.
Vegetative Growth
6-12 weeksStems elongate and branch; leaves become increasingly dense and vibrant green
Trim occasionally to encourage bushier growth. Dose fertilizers (macros and micros) regularly. Increase CO2 for faster growth.
Mature
OngoingPlant reaches desired fullness; dense carpet or cluster forms with thick foliage
Trim to maintain shape and prevent it from becoming leggy. Continue regular fertilization and water changes. Remove any yellowing leaves.
Propagation
Ongoing after maturitySide shoots develop from stem nodes; plant can be trimmed and replanted
Cut stem sections 2-3 inches long. Plant cuttings into substrate; they will root within 2-3 weeks. Reuse trimmed portions.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Maintain proper lighting duration (8-10 hours), reduce excess nutrients, perform regular water changes, use algae-eating fish or shrimp
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Remove manually with a siphon, avoid overfeeding, improve water quality, use commercial flatworm treatments if severe
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Remove manually, reduce feeding, introduce snail-eating fish (assassin snails, pufferfish), use snail traps
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and
Increase CO2 levels, boost micro and macronutrient dosing to favor plant growth, manually remove affected sections, use algae-eating fish (Siamese algae eaters, amano shrimp)
Uses
Aquascaping & Aquarium Aesthetics
HouseholdMicrophyllus is a premier foreground plant for planted aquariums, creating attractive carpets or dense clusters. Its delicate texture and bright green color enhance aquatic landscapes and provide natural aesthetics. [source]
Fish & Shrimp Habitat
WildlifeThe dense foliage provides shelter and hiding places for small fish, shrimp, and fry. It creates a naturalistic environment that reduces stress in aquatic creatures. [source]
Water Filtration & Quality
HouseholdLike all aquatic plants, Microphyllus absorbs excess nutrients (nitrogen, phosphorus, potassium) and produces oxygen, helping maintain water quality and reduce algae growth naturally. [source]
Low-Maintenance Terrarium Plants
HouseholdIn humid terrariums or paludariums, Microphyllus grows as a creeping groundcover, creating lush green carpets with minimal fertilizer requirements when humidity is high. [source]
Aquascape Competitions & Hobbyist Display
CraftA favorite among aquascaping hobbyists and competition participants, Microphyllus is valued for its ability to create intricate, detailed layouts in nature-style aquariums. [source]
Harvest Tips
Microphyllus is not harvested in the traditional sense but is trimmed to maintain shape and encourage bushier growth. Trim the top 1-2 inches of stems regularly; cuttings can be replanted to propagate new plants. Remove yellowing or decaying leaves by hand. Trim during regular maintenance every 2-4 weeks depending on growth rate.
Fun Facts
- 🌱 Microphyllus is a flowering plant capable of producing tiny white flowers above water; most aquarium specimens remain submerged and rarely flower.
- 🌱 The plant's common name 'Pearl Grass' refers to its delicate, pearl-like appearance when covered in tiny oxygen bubbles under high lighting and CO2 supplementation.
- 🌱 Microphyllus originates from North America but has become one of the most popular stem plants in the global aquarium hobby, especially in Asia and Europe.
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