Marimo moss balls are an easy to care and acctually are a type of algae they will compete for nutrients with unwanted algae and filter your water for a healthier ecosystem. They do not require any fertillizer or high light, the only maintenance they ever need is when ever you do a water change to flip the onto ther other side so both sides get light. Overall it's probably the perfect beginner aquarium plant you can even make complicated aquascapes using moss balls!
