I wouldn't use the ABG unless you're going to do a planted tank with something over the top of the ABG. You don't want the frog to consume this stuff. Eco earth would be the safest choice.
Quote Originally Posted by Strider18 View Post
Hello and welcome to frog forum!
1. The best substrate type that most people use is ABG, which you can buy online.
2. You can do Great Stuff backgrounds covers with titebond 3 wood glue mixed with dried cocofiber ( All credit to Deranged Chipmunk!).
3. The subsrate shouldn't need to be replaced to often, though you may need to spot clean it if you don't have any springtails or other decomposers.
4. You should definetly do the false bottom. It will be harder to keep humidity up with rocks but it can work as long as the rocks are big enough where your frog won't accientally ingest it.

I hope this Helps!