What I need to be happy in your home:
Light: Thrives in medium to bright indirect light. Not suited for intense, direct sun.
Water: 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.
Amy's Tip: Normal room humidity is fine, but it prefers more humidity if possible.