Planted Tank Guru
Join Date: Jun 2004
Location: Baton Rouge, LA
Since you're not using CO2, you must be using relatively low light.
Low light and low CO2 will naturally limit your growth rate. So patience is in order. Once the java moss doubles in size, however long that takes, it can double again in the same time period. And then double again, and so on. Just takes time.
I wouldn't waste the root tabs on the moss. Use it on plants that are known to appreciate them. Continue using them on the micro sword if you like, since it seems to be working.
I just looked at Pfertz for the first time and WOW, they are expensive. Unless they're including some New Orleans voodoo plant magic I would never pay that. The Flourish line will do just fine.
Plain Flourish supplies your iron and micros, and would be equivalent to Pfertz M. Flourish Nitrogen would be equivalent to Pfertz N. But with low light/CO2 and a medium to high fish load, nitrogen (and phosphorus) may not be necessary. What I do see missing is potassium, which would be Flourish Potassium/Pfertz K. But don't expect any miracles from adding it.
Normal doses of Flourish Excel would work as a partial CO2 replacement, but be warned - anacharis doesn't like it. If you try it, skip the larger initial dose, and start at only a fraction of the normal dose. Ramp it up slowly over time. This gives the anacharis time to adapt and usually keeps it from dying. The anacharis may still grow slower than normal, while everything else will grow faster.