Pest identification
What's eating my eleocharis vivipara?
Algae (green spot, thread algae)
Signs: Algae accumulates between layered blades and on new plantlets, stunting colonisation
Control: Maintain CO2, ensure strong circulation between clumps, introduce Amano shrimp to clean fine algae
Snails (ramshorn, bladder snail)
Signs: Bite marks on young blades and interference with viviparous plantlets
Control: Assassin snails or manual removal; plant traps baited with vegetables work well overnight
Koi and goldfish
Signs: Uprooted clumps and eaten blades; fish disturb substrate when rooting
Control: Contain in heavy mesh baskets or dedicate a koi-free pond zone for aquatic plants
Keep eleocharis vivipara pest-free
Healthy plants resist pests best. Get the basics right:
Eleocharis vivipara pests — FAQ
What is eating my eleocharis vivipara?
Eleocharis vivipara (Umbrella Hairgrass) produces distinctive umbrella-like plantlets at blade tips. Algae colonises the dense, layered growth easily. Snails graze young blades and disrupt plantlet formation. In outdoor pond use, koi and larger fish uproot or eat the clumps, and waterfowl will graze the emergent growth above the waterline.
How do I get rid of algae (green spot, thread algae) on eleocharis vivipara?
Algae accumulates between layered blades and on new plantlets, stunting colonisation Maintain CO2, ensure strong circulation between clumps, introduce Amano shrimp to clean fine algae
How do I get rid of snails (ramshorn, bladder snail) on eleocharis vivipara?
Bite marks on young blades and interference with viviparous plantlets Assassin snails or manual removal; plant traps baited with vegetables work well overnight
How do I get rid of koi and goldfish on eleocharis vivipara?
Uprooted clumps and eaten blades; fish disturb substrate when rooting Contain in heavy mesh baskets or dedicate a koi-free pond zone for aquatic plants