I've had my java fern for roughly 4 months now and it never really took off. Even though my dwarf sag, rotala, and ludwigia are flourishing, the java fern just gets spotted and makes seed pods. I'm dosing with easy green weekly and have a good quality light. I appreciate any advice to make it grow better. Also, it's attached to the rocks and the rhizome is not buried in the sand. Thanks!