PokerTracker

Is there any way I can open my HEM database through PT3 so I don't have to create a new database and re-import all of the hand histories? Will PT3 detect the Postgresql databases that HEM uses and be able to open them?

Also, will the current Postgresql I use for HEM be good enough and work with PT3 too? It's version 8.3

PT3 cannot read HEM databases – they are completely different, so you will need to reimport.

PT3 will work fine with PostgreSQL 8.3, though. You will need to use the same "postgres" login details as you were using in HEM (password "postgrespass" by default, I believe).