What lights are you using? It might be worth looking into doing some light dosing of the water column since anubias and fern get nutrients straight from the water.
I'd also recommend getting more anubias and fern maybe....just cause I like having more heavily planted things going on. There are also a bunch of different varieties and species of both.
I think my tank will mostly be anubias and Java Fern also. Sounds like I ought to ditch the root tabs and use liquid fert?

