I use JerassiSafe (spray) or JerassiWipes (wipes) for cleaning up messes and mineral buildup from my de-clor solution. JerassiSafe is great because it's an odor remover. Not so much a problem with the frogs, but my Beardie can stink up the room. The spray bottle is like $5-6 at Petsmart and lasts me a long time (like, a few months).

With regards to substrate, I like the reptile/amphibian bark with moss mixed in. I get both of them at Petsmart or Petco, both frog safe, and the bark is big enough pieces that I don't think the frogs eat it. They have eaten some of the moss, but it doesn't seem to bother them.