Tridacna maxima – The Maxima clam also known as the small giant clam is the most popular giant clam species in the aquarium trade. Maxima clams have some of the brightest coloration of any of the giant clam species. They do very well in aquariums with higher lighting and should be kept in the rock work so they can attach with their byssal threads. They can reach a max size of 12.

Type A is similar to Grade A/Ultra clamswith more blue and purple coloration

Type B will have more Greens and browns