How to Create a Short Join Form

How do I create a short join form? Consisting of only username, email, password, password confirm, and captcha?

I understand dolphin requires certain fields to be mandatory.  Does anyone know what fields are absolutely required on the join form for dolphin to work?

I tried marking several fields as non-mandatory on the join form and this did not work.  Members could not join at all.

Members want a quick and easy signup.  They can edit their profiles later.

Any advice or perhaps a mod? Thank you for your time!

In admin panel go to Builders and choose Profile Fields.  Join form will open.  To remove questions etc. just click and drag them into the Inactive Blocks section.  Step by step pics attached.

Hope that helps jfike33.  I am a novice but learning quickly.  If you notice that you still see some fields which appear in your admin section of the profiles, review the Builders section and make sure the profile fields are the same on the join form as your admin section.  Have a great day. x

So the join form and edit profile edit must match exactly?  I'm wanting members to sign up with basics but be able to add  more details in the edit.  Is this possible or must they match?  Thank you so much for the help!

I was also told that there are some fields that are absolute mandatory on the join form.  Do you know which ones are mandatory for dolphin?