99 crv keeps popping main fuse
 

Got a problem with my 99 crv 4wd so I was driving and suddenly lost power and could not get it out of park and then I noticed I blew my main fuse so I put a new one in and connected my positive and it started arking and melting my terminal 10 mins before that I put belt conditioner could the conditioner somehow shorted my alternator causing to blow the main fuse

Yes, it is possible.
Disconnect the alternator and put in new fuses

Rather than take a chance on destroying a new fuse measure the resistance on that line before disconnecting the alt. Do you have a short?
Disconnect the alt. Is the short gone? If so the alt needs replacing.

Problem was solved i disconnected the alternator and i now have power