From video it appears the soil (dark substrate) is either at or very close to water level. If water logged you will have a bacterial growth leading to swamp conditions in there. How did you built the drainage level and what is the plan to remove excess water out.

My recommendation would be to run any new vivarium for 4 weeks letting it cycle and solving any issues before moving frogs in. Your janitorial population needs a chance to grow out and colonize the substrate. A water feature will normally take a full month to cycle the ammonia and nitrites into nitrates. You can half that if using a seeder like Seachem Stability; but it's not going to be ready in a couple days.

Did you blocked the back channels/holes in that ExoTerra foam background? Asking because if not, they will become food and even frog accessible. What parameters are you holding now for temperature and humidity? Hope the information and questions help out and prevents problems that could affect frogs later.