Mermaid Hygro, scientifically known asProserpinaca palustrisand often called Mermaid Weed or Saw-Tooth Hygro, is a striking stem plant that brings bold texture and evolving color to freshwater aquariums. Its unique serrated leaves and dramatic transformation under strong lighting make it a true statement plant in any aquascape.
Under moderate lighting, Mermaid Hygro displays bright green, saw-shaped leaves. With higher light intensity, the foliage becomes more bristle-like and begins shifting into beautiful shades of pink, orange, and gold—creating a stunning visual contrast among traditional green plants.
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Key Features
Serrated “Saw-Tooth” Leaves
Distinctive leaf edges create a bold, textured appearance.
Color-Changing Foliage
Transitions from green to pink and golden tones under high light.
Moderate to Slow Growth
Easy to manage without constant trimming.
Excellent Background or Midground Plant
Adds height, color, and depth to aquascapes.
Unique Visual Structure
Comb-like leaf shape stands out from typical stem plants.
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Benefits
Mermaid Hygro enhances aquascapes with both texture and color. Its moderate growth rate makes it easy to maintain while still providing strong visual impact. Dense growth helps absorb excess nutrients, supporting better water quality and reducing algae buildup.
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Care Guide
Light
Moderate to high lighting (higher light enhances color).
Water Temperature
68–82°F (20–28°C)
Placement
Midground to background.
Substrate
Nutrient-rich substrate recommended.
CO₂
Not required, but improves growth and coloration.
Growth Rate
Moderate to slow.
Maintenance Level
Easy
Trim tops and replant to maintain shape and encourage bushy growth.
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How to Plant & Propagate
Rinse stems gently.
Plant directly into substrate.
Trim colorful tops and replant to spread vibrant growth.
Lower stems may be removed or left to thicken the base.
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Perfect For
• Freshwater aquariums
• Color-focused aquascapes
• Midground and background layouts
• Planted community tanks
• Hobbyists seeking unique textures
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Why Choose Mermaid Hygro?
• Rare serrated leaf shape
• Dynamic color transformation
• Moderate growth = easy maintenance
• Adds texture and depth
• Excellent focal stem plant
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Quality Assurance
• Healthy live plants
• Inspected before shipping
• Shipped fresh and ready to plant
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Live Arrival Guarantee
Your plant is protected by our Live Arrival Guarantee.
If it arrives damaged or unhealthy, contact us within 2 hours of delivery with photos for a replacement or refund.
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Important Notes
• Color intensity depends on lighting
• Natural variation in leaf shape and color
• Best visual results under higher light
🌱 Care & Resources
Browse more: Stem Plants · All Aquarium Plants
📖 Care guides: Stem Plants: Essential Guide for Aquarium Success · Rotala: A Splash of Color for Your Aquarium
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