[fishingguy12345]

Hello and welcome!

I'm not going to comment on the plant selection (I'm not really a plant guy), but the rest of the layout looks good for Dendrobates tinctorius "azureus".

What does the tank have for ventilation?

 

[fishingguy12345]

There are three one inch holes at the back that are always open

They're covered with mesh to keep the frogs in, right? 🙃

 

[fishingguy12345]

Should I mesh the vents off as an aditional precaution?

Yes, I would