What's eating my hydrocotyle leucocephala?

Hydrocotyle leucocephala (Brazilian pennywort) is a fast-growing aquatic plant most commonly damaged by snails, which quickly shred its thin, coin-shaped leaves. When grown emersed or as a houseplant, aphids can colonise soft stems. Inspect new plants before adding them to any tank or pond to prevent introductions.

Holes chewed through leaves and stems eaten back to stubs; slime trails on foliage Hand-pick snails at night; use snail traps baited with vegetable matter; quarantine new plant material before adding to the tank

Dense colonies on emersed stems and leaves; distorted new growth and sticky honeydew deposits Rinse with water and apply insecticidal soap or diluted neem oil to affected emersed growth

Pale stippling on leaf surface; fine webbing present on emersed portions in dry conditions Increase ambient humidity and mist foliage; treat with neem oil or a miticide if infestation persists