<unk>  (formerly M. balnei) is a free-living bacterium, which causes opportunistic infections in humans.<unk>  sometimes causes a rare disease known as aquarium granuloma, which typically affects individuals who work with fish or keep home aquariums.
Mycobacterium marinum
Mycobacterium abscessus
Mycobacterium terrae
Mycobacterium xenopi
Mycobacterium immunogenum
Mycobacterium chelonae
Mycobacterium szulgai
Mycobacterium celatum