I've got a shit! Ton of questions!...

I started germination GG on 8/29/17
And cup of water shot of 3% peroxide, and my other girls are starting off great, but GG, doesn't wanna tap root, so I placed her back in the water peroxide solution today 8/30/2017, but when I placed the GG IN The water, it sunk! When before it floated? Any answers on this would be great!

Also,

I adopted these 2 seeds , and I'm not sure if their going to be male or female, I have them contained in a separate area, but they tap rooted quick, like over night!
Is that good or bad?

And is there a way to tell male or female before veg 2-3?

Thank the community for any help you can bestow

P.S.
Here's a pic of my adopted girls.

dude, all of these q's are covered in the first chapter of most free grow bibles.
http://catnews.org/FREE Pot Books/

when seeds absorb water they sink
only genetic testing can tell the sex of your seed this early
fast growing roots are always a bonus
cervantes or rosenthal are good ones

1. some seeds dont take
2. if they sink, they are ready to be put into soil.
3. dont remove or dig around your seeds to see if they have rooted
4. no you can tell sex for many more weeks
5. do way, way more reading
http://www.growweedeasy.com/10-step-grow-guide
https://www.rollitup.org/t/101-already-asked-questions.1326/
http://www.ilovegrowingmarijuana.com/guides

I've got a shit!

Is all I seen to make me click

Google is your friend.

Google and YouTube and high time magazines