Originally Posted by vvDO
It looks like you may have buried the rhizomes of java ferns. That may be why they are not doing well. Lift them up or tie them to driftwood.
I noticed this as well. Some things in your tank were ideas I had of doing in some of mine. I like it. Get those ferns out of the substrate and you should be good. Are you dosing ferts? With mosses I would avoid Excel, but have you thought about C02?