How much to water terrarium?

As you can see, I do have it kind of sealed with plastic wrap and a rubber band, but I’m aware I may have put an incorrect amount of water to start, or not have the right plants for it to be fully sustainable.

This is my first terrarium, so I’m just wondering if I should be removing the lid every so often to water.

If I should be doing this, how often should I water and how much water should I provide it? Thanks!

As you can see, I do have it kind of sealed with plastic wrap and a rubber band, but I’m aware I may have put an incorrect amount of water to start, or not have the right plants for it to be fully sustainable.

This is my first terrarium, so I’m just wondering if I should be removing the lid every so often to water.

If I should be doing this, how often should I water and how much water should I provide it? Thanks!