Light for Clams

[Synthesis]

The key word here is thrive...not survive. It is best to always use the word thrive other then survive. Cause really you want an environment where the creature can feel right at home(the ocean). If your clam shows no growth in a year then you are giving it just enough light to survive...this is not exactly what we reefers are aiming for is it??

Research before you buy. Think about what it really needs and not just want you want in your tank. Metal Halide is the way to go for this species.