Welcome to the WP.

I bet if you ask every member on here you will get a slightly different answer on how to germinate. Lately I have been soaking the seeds overnight in PH'd water with a few drops of H202 and generally I see them crack open in 24 hours, from there they can go in rockwool, rapid rooters or strait into the media, if its coco coir or soil. 

Before you go any further I suggest you go here and read, read, read and then read again. They have a tutorial on germination and just about everything else.

https://www.growweedeasy.com/

2 things I have found that can lead to disaster are putting rockwool into soil or putting rapid rooters into rockwool. Rockwool seems to work best on its own or surrounded by a dry media like Hydroton and rapid rooters in rockwool just hold to much water.