I can see that you got some great advice already, but I just want to add with a few things:
1. It can't be stressed enough how much they need it to be dark at night. Like, pitch dark, at least when they're settling in. After a month or two (or more correctly, when they're settled in to their new home), you can add night lights to view them at night.
2. If you want even more feedback on the terrarium, post a picture of it. It's hard to actually comprehend how it looks with just words.
3. If you ask me, personally, I really think you should have a lot of real plants. There's no reason not to have it, unless it's a quarantine tank or something like that.


Congratulation on the new frogs! I hope to see a lot of pictures.