Fissidens fontanus, commonly known as US Fissidens or Phoenix Moss, is a delicate, bright green aquatic moss native to North America. It is famous for its soft, feathery fronds that grow outward and droop gracefully, creating a stunning "fountain" effect over hardscapes.
Why Choose It
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Cascading Aesthetic: Its unique, drooping growth habit softens the harsh edges of rocks and driftwood beautifully.
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Versatile & Hardy: Highly adaptable to a wide range of water parameters and lighting conditions, making it beginner-friendly.
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Natural Anchoring: The rhizoids grip tightly to wood and porous stone over time, holding its shape without floating away.
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Excellent Shrimp Habitat: The fine, dense fronds trap biofilm and provide excellent shelter for dwarf shrimp and baby fish.
Planting & Care
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Attachment: Do not plant in the substrate. Spread a thin layer over wood, rocks, or stainless steel mesh and secure it using dark thread or aquarium-safe super glue.
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Upkeep: Maintain clean water and gentle to moderate flow to prevent detritus from clogging the fine leaves. Trim by gently snipping the top layers to maintain its rounded, bushy shape.
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Parameter |
Ideal Range |
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Lighting |
Low to Medium |
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Temperature |
60°F – 82°F (15°C – 28°C) |
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Water Flow |
Low to Moderate |
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CO2 |
Optional (creates denser, faster growth) |
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Placement |
Tied or glued to hardscape and mesh |
