What were your water parameters like when the clams died? What were your ammonia readings when you tested your water? Did 4 die at the same time? Or have 4 died in total? How many clams have you raised in total?
Four died in total. One very shortly after arrival. I assume it may have been near death from transport since that sort of thing is not uncommon. Our parameters have been stable since the tank finished cycling. Ammonia stays at or very near zero. Same with nitrites. Nitrates were fairly high before we added Nitra-Zorb to the filter.
Originally Posted by Bananariot
4/6 survival rate already proves that something is wrong
Right. That's why I started this thread. I don't know if there's something I can fix or not. Our tank is strange. The ghost shrimp are thriving, but all the cherry shrimp have died. The cories are psychotically happy. But the otos both died in just a few days. I don't know if the clam deaths are a similar phenomenon.
I have been target feeding with Kent's plankton. I never expected the clams to replace a filter. But I also know that our filter does not remove everything. So I did expect the clams would get some food from the water column.
Originally Posted by ThatGuyWithTheFish
Right, because one experience says more than ten others?
Sort of. In the world of science a single contradictory bit of evidence does negate even the most long-held of hypotheses. People say clams will invariably destroy all life within thirty feet of your tank when they die. We have had clams die and remain undiscovered for more than a day without any ammonia spikes or loss of fish. So clearly those who have had problems are overlooking other issues at play. If dead clams always destroyed tanks then ours would have been no exception. On top of that, I fail to see why clams would be any different from any other critter that might die. A dead guppy will cause problems if left alone to rot.
Even if clams don't add anything to a tank they are still interesting critters. In that respect they aren't really different from most of the critters we put into tanks. Our cory cats definitely don't clean up more than they add. But that doesn't stop people from keeping them.
There are scores of threads for just about every fish imaginable to help people with the nest ways to keep them healthy and breeding. I can find information on culturing daphnia and other foods. I can find information about all sorts of "difficult" fish and plants here. I was hoping to find at least some information about feeding my clams to keep them happy. Guess I'll keep experimenting.