Whats wrong with my Clams?

[fishytime]

I think that clams are probably one of the most sensitive things that we can put in our tanks.....they are somewhat like a sea squirt.....they filter large amounts of water through themselves in a day....not as much as a sea squirt but still enough that the water quality needs to be excellent.......stability is key.....I dont recommend to any customer to put a clam in their tank until the tank is about a year old.....the first year of a tanks life is usually a very unstable environment.....the excitement of a new tank usually brings a lot of new additions, which in turn causes a perpetual teetering of the balance of the tank.....generally speaking the new additions tend to slow down after a year or so and the tank has a chance to catch up to all the "teetering" and mature......