ok, so I attempted to do what YouJettisonMe did and have the mini pelia grow on the substrate directly, but after reading zeldar's journal, although initially successful, the MP eventually started floating away from the substrate, not what I want to do after having grown it out for so long.
I tied it all to stainless steel mesh and placed them all along the top of my mountains instead and the rest is glued to the rocks so they're not going anywhere.
I also added the elatine hydropiper from Raymond, really cool plant. It's yellowing a little because I was out of town for 4 days and was unable to spritz it (plus my spritz bottle broke)
My HC is growing in nicely too
And finally a FTS. I'm moving to SF in May so this tank will remain dry start until then. I don't want to set it all up to only have to tear it down in a few weeks.