cuttlefish• In the Far East the stomach of one whale was found to contain the indigestiblebeaks of 20,000 cuttlefish.• You could add a piece of cuttlefishbone, which is high in calcium, and would dissolve in the water.• It houses sea snails, cockles, mussels, large fish, squid, cuttlefish, octopuses, shrimps and crabs.• For example, the cuttlefish, when attacked, releases a large blob of ink into the water.• It can be a little disturbing at times, and there's none I feel more sorry for than the cuttlefish.• Floating in the water it is suddenly more noticeable than the cuttlefish itself.