Do you mean the Staurogyne Repens; at first it looked like it was all going to die out but now it has been spreading quite a bit. One problem is I use inert substrates so it takes a while for plants to adapt. I've had it for close to a year and in the past month it has spread about 25% from original foot print.Looks great !
They [planted tanks] are dynamic, cyclical, and ever changing. Almost never static. Aggressively growing or too many plants, not enough growth of one or another, algae of this or that kind. Never the same.
In the last picture, what is the plant in the foreground, center?