Pest identification
What's eating my sagittaria subulata?
Aquatic snails (pest species, e.g. bladder snails, Malaysian trumpet snails in excess)
Signs: Holes eaten in leaves; heavy snail populations can strip a new planting before it establishes
Control: Manual removal and snail traps (lettuce or cucumber slices overnight). Introduce snail-eating fish (assassin snails, loaches) as biological control.
Green spot algae (Coleochaete orbicularis)
Signs: Hard green discs coat leaves, blocking light and smothering slow-growing plants
Control: Raise CO2 levels, increase light duration, and dose phosphate if deficient. Manual removal with a blade; introduce Otocinclus catfish.
Aphids
Signs: Clusters on emersed leaves or stems at the waterline in indoor settings; sticky residue
Control: Submerge affected leaves briefly to drown aphids; wipe off with a damp cloth. Keep indoor humidity up to deter colonies.
Keep sagittaria subulata pest-free
Healthy plants resist pests best. Get the basics right:
Sagittaria subulata pests — FAQ
What is eating my sagittaria subulata?
Dwarf sagittaria (Sagittaria subulata) is an aquarium and indoor water plant. Its main pests are aquatic snails that graze and shred tender leaves, green spot algae that smothers low-light plants, and green thread algae in high-nutrient tanks. Aphids may appear on emersed growth near the waterline.
How do I get rid of aquatic snails (pest species, e.g. bladder snails, malaysian trumpet snails in excess) on sagittaria subulata?
Holes eaten in leaves; heavy snail populations can strip a new planting before it establishes Manual removal and snail traps (lettuce or cucumber slices overnight). Introduce snail-eating fish (assassin snails, loaches) as biological control.
How do I get rid of green spot algae (coleochaete orbicularis) on sagittaria subulata?
Hard green discs coat leaves, blocking light and smothering slow-growing plants Raise CO2 levels, increase light duration, and dose phosphate if deficient. Manual removal with a blade; introduce Otocinclus catfish.
How do I get rid of aphids on sagittaria subulata?
Clusters on emersed leaves or stems at the waterline in indoor settings; sticky residue Submerge affected leaves briefly to drown aphids; wipe off with a damp cloth. Keep indoor humidity up to deter colonies.