All are TRUE about pneumococci, EXCEPT:

Pneumococci are spherical gram-positive bacteria . Greek streptos, meaning "twisted," and kokkos, meaning "berry." 22 streptococcal species are recognized and are divided fuher into groups based on their hemolytic propeies. S. pneumoniae belongs to the alpha-hemolytic group that produces a greenish color on blood agar because of the reduction of iron in hemoglobin The bacteria are fastidious and grow best in 5% CO2. Ref: Harisson, Edition - 18, Page 1151