What is the small java fern? Have you just pruned it to keep it small or is it a specific small growing variety?
Can't say I've really noticed this thread before today - I have a Rekord60 with 2wpg (2x15w tubes, spread one right at the front and the other towards the back, ripped out all existing electricals etc) and my glosso seems to be doing well, it is staying very low down despite the poor choice of pea gravel! Strangely I also have some hair algae in my tank, all confined to the glosso, all getting ripped out soon so I am not overly fussed. Dosing full EI (with pressurised CO2) so I doubt it is nutrient issues. Recently reduced my fish stock level dramatically though and I think a high stock in this size of tank and the Juwel filter may give some degree of ammonia etc - I'm hoping that after the full rescape (and move to a TetraTec EX600) the hair algae won't come back....fingers crossed!
I'm re-scaping soon, if the java fern you have/had will stay that small I will have to try and find some, it is lovely!