Squamosa clams can grow to approximately 16” in mantle length with very thick, patterned shells. The Squamosas can come in a variety of colors, including bright blues and greens. This bright coloration is mainly located in the many spots covering its mantle.
The Squamosa clams are very hardy and are tolerant of varying lighting conditions; however, they tend to do best under medium to high lighting since the majority of their food (about 80-90%) comes from photosynthesis. They tend to live at relatively shallow depths where they receive intense light, so fluorescent lighting is a poor choice for anything other than rather shallow tanks, unless a specimen is placed high up on the rockwork near the water's surface in a deeper tank.