The distinguishing feature that sets this fern apart is that the leaves split at the end giving them their "lace"name. 
Included is one rhizome approximately 4 inches in length with at least 6 leaves.
Java Fern is an epiphytic aquarium plant. This means it grows best when attached to hardscapes like driftwood and stones.
In its natural climate, Java Fern grows alongside streams and is often found near moving water. 
They don’t require CO2.
They are also found on jungle floors, where soft acidic water is sprayed on its leaves from streams and waterfalls. To replicate these conditions, the recommended pH is 6.0-7.0.
This is a hardy plant that doesn’t require any special conditions to help it grow.