what types of bacteria can kill germs?

Question: what types of bacteria can kill germs?
- Keywords:
  death,
  medicine,
  microbe
Asked by to Ruth on 23 Jun 2014. This question was also asked by .
- Ruth Nottingham answered on 23 Jun 2014:
  
  A bacteria called Bdellovibrio bacteriovorus can kill lots of bacteria in the Gram negative group- some of these are harmless and some of these can cause disease in humans, animals and plants. Another bacteria called Micavibrio has also been discovered, this bacteria sucks out all the insides of prey bacteria sort of like a vampire. Myxococcus xanthus are bacteria that have been described as acting like a wolf pack in hunting bacteria!
  
  This youtube video shows Myxococcus xanthus hunting E.coli

Question: what types of bacteria can kill germs?