Green Sea Lettuce Ulva Macroalgae

Macroalgae Farms

Green Sea Lettuce Ulva Macroalgae

$11.99

Key Features:
⭐ Bright green leafy macroalgae
• Soft flowing texture with natural movement
• Fast-growing nutrient export macroalgae
• Great grazing food for herbivorous fish

Size: Golf Ball Size (1.5")
In stock

This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!

Estimated delivery between June 16 and June 18.

Green Sea Lettuce Ulva Macroalgae

$11.99

$11.99

Choose option
Size: Golf Ball Size (1.5")
  • Golf Ball Size (1.5")
  • Baseball Size (3")

About this item

Green Sea Lettuce Ulva Macroalgae

Green Sea Lettuce (Ulva spp.) macroalgae is a bright green sheet-forming macroalgae widely known for its fast growth and exceptional nutrient uptake in marine aquariums. Its thin, translucent blades resemble lettuce leaves, giving the algae its distinctive and recognizable appearance.

Ulva grows as soft leafy sheets that can attach lightly to rock, substrate, or tumble freely in refugiums. These broad blades efficiently absorb nitrate and phosphate while also providing natural grazing material for herbivorous fish and invertebrates, making it both functional and visually appealing.

Available Options

Golf Ball Size (1.5")

  • Starter portion ideal for refugiums or macroalgae displays
  • Several small leafy Ulva blades
  • Good starting amount for nutrient export or herbivore grazing

Baseball Size (3")

  • Large starter mass for established refugiums
  • Multiple broad leafy blades
  • Excellent for strong nutrient export and natural herbivore food

Care Information

💡 Lighting
Moderate to High		 🌊 Water Flow
Moderate
📍 Placement
Refugium, sump, or display		 ⚙️ Care Level
Easy
📈 Growth Rate
Very Fast		 🧪 Nutrient Uptake
Very High

Special Considerations

Ulva grows as thin leafy blades that can float, tumble, or loosely attach to surfaces. It thrives in nutrient-rich systems and benefits from moderate water movement to keep the blades clean and healthy. Regular harvesting encourages continued rapid growth and sustained nutrient export.

🌱 Propagation

Green Sea Lettuce Ulva propagates through rapid growth and natural fragmentation:

  • Blades grow quickly under strong lighting and nutrient availability
  • Pieces can be divided and placed elsewhere in the aquarium
  • Small fragments readily develop into new macroalgae blades

Learn More

For detailed species information, compatibility, and care tips, visit our Species Library.

Livestock Disclaimer

Due to natural variation between specimens and species within a genus, the item you receive may not appear exactly like the one pictured. Photographs are representative examples of general appearance and growth form.

Individual specimens may vary in size, shape, coloration, and growth pattern depending on age, lighting conditions, and environmental factors.

Approximate size ranges are provided for reference but may differ slightly from the specimen received.

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