Microsorum Java Fern Care Guide: Black Spot Causes & Solutions

Java Fern is a classic favorite in the planted aquarium hobby, loved for its stunning appearance, hardiness, and ease of care. Whether you’re new to the aquascaping world or a seasoned pro, this versatile plant fits seamlessly into any tank. With its thick, tough leaves, a Java Fern plant can withstand the nibbling tendencies of fish like cichlids and goldfish.

Although this freshwater aquarium plant is famously “low-maintenance,” certain challenges may arise if you don’t meet its specific needs. Issues like browning leaves, stunted growth, or plantlets that struggle to thrive can leave hobbyists scratching their heads.

But don’t worry—this guide has everything needed to grow lush, healthy Java Ferns, plus a breakdown of the most popular variants for extra inspiration: