Thank you for your replies and time Paul, Lisa and Amy, they are much appreciated.
I have noted the suggested plants in my pad of research,bromeliad was on my list as a potential so thanks for the info regarding this, I can now cross it off as a no no. You just cannot beat info coming first hand from people.
Really nice looking set up Paul, the moss vine looks great, just a shame they don't use it. Thank you also for your comment on the background, I will definitely take that on board. I am hoping to get my setup running for a couple of months before I get the frogs as practice for humidity and temperature levels whilst giving the plants a chance to mature.
One thing else I am wondering, it has been recommended to spot clean daily,not a problem, but also to completely clean the bottom every 3 months or so. How does this disturbance affect the frogs and the plants that are planted direct in the substrate? I understand cleanliness is important but would hate to disturb the balance of the tank.