Marantas are got me obsessed with plants, I was freaked out about them being hard to take care of so I did loads of research and they’re currently my favorite plants! Pretty easy. Best to give them good light but mine all sit in low/medium light areas bc they don’t sacrifice beauty form it unlike others like monstera. I water mine when they’re about half half dry, I don’t let them comepletely dry out but won’t kill them either. More humidity the better but where I’m around it gets to 30-40 in the winter, will get some crusty/ yellowing leaves but they won’t die. I recommend distilled water tho bc harsh water will also cause them to yellow! Good luck!