Whats wrong with my Clams?

[MarkoD]

I've had the tank setup for a year now without doing regular water changes.

I've got no problem keeping any corals or fish.

My sps grow faster than I ever expected.

None of my corals are showing any signs of there being anything wrong with the water quality or perameters.

[Proteus]

20 bucks is a small price to pay if they do die my Cbb will have a full belly