I have a few questions about the husbandry of these frogs..

1. Substrate- I've done a lot of research (mainly on this forum) and it looks like the best substrate to use is a mix with River sand, coco husk, and river rocks? Can someone with experience with this species let me know which substrate works best for them.

2. Housing- What size tank would be suitable for 2 frogs? (I'm not planning on breeding) I'm a snake guy so I have a lot of sterilite tubs, would these work? Or would a glass terrarium work best?

I've also read that these frogs have died from there enclosure being to wet? How often would I have to mist the tank to keep this from happening? Also, can they have a diet of just crickets? Or should it be a variety of things? Thanks in advance!