I'm going to be moving my firebellies out of their medium Exo Terra to make room for some darts. Now I have some questions:
1. Do I need to tear down my GS background because my firebellies have been living in there for the last six months and the waterfall runs down the center? Or is there a way to clean it.
2. I don't want to start off with the typical beginners (tincture,luecs,auratus) and want to go with something like the Ranitomeya Benedicta, Lamasi, Variabilis, Ventrimaculatus, or like John's imatator Veradero or Tarapata. How hard are they really when it comes to keeping them successfully? I like these color patterns and price doesn't really make that much of a difference to me.
I want a frog that is bold, awake a lot, and not microscopic. I would like to get four of them but two would be fine if there is territorial issues.

Most importantly I would like to start off with a sexed pair of adults..not babies at this time. I would like to get them in March when winter is ending. Does anyone sell adult pairs like this?