How can I add a min size to my question?

There is no min size for your question field, but you can still limit the maximum number of characters allowed for your question. By adding a maximum, your users can still enter any amount of characters as long as they are below the max limit. Please follow the steps below:

1. Click the gear icon on the top right of the field.

2. Select Options 

3. Enable the Limit Entry and input the maximum characters

If you need further assistance, please let us know.
Regards.