Snail in my opened-jar terrarium

[truongminhvu]

Is there any terrarium master around here that could give a newbie some advice.
I recently started creating some opened and sealed terrariums. In one of my opened terrarium, which was made two weeks ago, I spotted an uninvited guest, a tiny green snail. There are some picture i took of my terrarium and the snail in question.
Picture: Jared Terrarium and Snail
Anyhow, I need to know, should I remove the snail or leave it be ?; Is it harmful for my terrarium? Please let me know since the little devil look so small and cute.
Thanks for your time.

 

[hcarlton]

Snails eat plants (and can be quite destructive in doing so); ergo, I would remove it asap. When I find snails in my greenhouse they get fed to the Nepenthes.

 

[Acro]

It is rather beautiful, what part of the world are you in? Maybe keep it in another setup just for snails?

 

[truongminhvu]

I am in Vietnam. Ho Chi Minh city to be precise

 

[Acro]

I knew those green snails weren't in the USA. Luck you! They are beautiful!
So what did you decide to do?

 

[DragonsEye]

Snails eat plants (and can be quite destructive in doing so); ...

Not all do. Some are predatory and feed mainly on other snails. Would have to get the green snail ID'ed to know for sure what it feeds upon.

 

[Acro]

And don't some feed only on detritus?

 

[truongminhvu]

Base on the majority of advice i recieved, I remove the snail and two other smaller one.

 

[DragonsEye]

And don't some feed only on detritus?

Some do, but from what little I've read, may only be a few of the aquatic species.