Water every 1–2 weeks, allowing soil to dry out half way down between waterings. Expect to water more often in brighter light and less often in lower light.
Marantas can be sensitive to hard tap water. Try using filtered water or leaving water out overnight before using.
SYMPTOM: Curling leaves with brown tips
CAUSE: Not enough humidity
SYMPTOM: Washed out coloring or brown blotches on leaves
CAUSE: Too much direct sun
SYMPTOM: Yellowing leaves, rotting stems