Can anyone suggest me a media for the stimulation of MICP on a laboratory scale? There are a lot of papers suggesting the use of an NBU (modified nutrient broth with urea and CaCl2) media for the test. But I tried with the media. But the media did not work as we expected. There was a precipitation before the inoculation of the bacterial strain (I used Bacillus megaterium). Please suggest a media or method.