anchor.diff:  /obj/item/weapon/tank/internals/plasmaman
   	icon_state = "plasmaman_tank"
   	item_state = "plasmaman_tank"
  -	force = 10
   
   /obj/item/weapon/tank/internals/plasmaman/New()
   	..()
  
positive.code: 	desc = "A tank of oxygen."
  	icon_state = "oxygen"
  	distribute_pressure = ONE_ATMOSPHERE*O2STANDARD
  	force = 10
  
  
  /obj/item/weapon/tank/internals/oxygen/New()
  
negative.code: 	desc = "A tank with an N2O/O2 gas mix."
  	icon_state = "anesthetic"
  	item_state = "an_tank"
  
  /obj/item/weapon/tank/internals/anesthetic/New()
  	..()
  