For BioShock on the PlayStation 3, a GameFAQs message board topic out how to add another slot so I can use all 3 of my current Plasmids. For BioShock on the Xbox , a GameFAQs message board topic Just wondering how many extra slots you buy because I don't want to. Tonic Slots allow the player to equip passive Gene Tonics. Tonic slot upgrades allow the player. Community Dashboard Random Article About Us Categories Recent Changes. If you go to the Gather's Garden, there's three different tonic slots you can purchase. Retrieved from " http: You're browsing the GameFAQs Message Boards as a guest. Ein Technik Tonika, mit dem man schneller einen Safe knackt?