[triazole]

I was wondering if somebody could id the foreground plant in between the rocks, also extending to the mid-ground in some cases.
My guess was some kind of moss, or hc.
Thanks,
Arin

 

[hydrophyte]

I would have guessed glosso, but it's hard to tell the photograph is rather small for a good view of that little plant.

 

[triazole]

Thanks Hydro...it's something that doesn't need that deep a substrate. I've tried to place rocks like that before, and the substrate-depth is not much when you want to grow plants between rocks.
That's why I was leaning towards moss...