How much does baby tarantulas weigh at birth?

Most baby tarantulas weigh 1.7grams - 2.0grams at birth. Once 2 days old are as big as your fingertip. I hope this information came in handy as I am a biologist and study the area of archnids and other insects. But I came acroos this question I heard on television that I just can't figure out pls help me.Another term for an aurora is the Midnight what? Thanks, hope I am handy for you always, - Biologist Nancy Hugh.