Description
Marimo Moss Ball (Aegagropila linnaei)
Simple, unique, and incredibly easy to care for—Marimo Moss Balls are a favorite for freshwater aquariums. These soft, velvety green spheres are actually a rare form of algae that naturally grows into a ball shape. Known for their low maintenance and natural filtration benefits, Marimo Moss Balls are perfect for beginners and experienced aquarists alike.
Key Features:
• Unique Round Shape: Natural spherical growth adds a clean, modern look to any aquarium.
• Extremely Hardy: Thrives in low light and a wide range of water conditions.
• Natural Nitrate Absorber: Helps improve water quality by absorbing nitrates.
• Low Maintenance: Requires very little care and no trimming.
• Shrimp & Fish Safe: Great for shrimp tanks and peaceful community aquariums.
• Gentle Surface Biofilm: Provides grazing area for shrimp and microfauna.
Care Guide:
• Lighting: Low (avoid strong direct light)
• Water Temperature: 68°F – 78°F (20°C – 26°C)
• pH Level: 6.0 – 8.0
• Placement: Foreground or decorative accent
• Growth Size: Typically 1–4 inches (can grow larger over time)
Care Tips:
• Gently roll occasionally to maintain round shape
• Rinse in tank water during water changes if debris collects
• Keep in cooler water for best long-term health
• Avoid burying or compressing them
Marimo Moss Balls are a perfect choice for aquarists looking for a simple, natural way to add greenery while helping maintain a balanced aquarium ecosystem.







