Clam question

[briansmyth]

Is the clam getting enough light - nothing has changed such as bulbs getting older or having a build up on them?

No bristleworms in the area suggesting that maybe it is already too late for the clam?

No swings in the calcium levels sounds like. Those nine clams must be quite calcium demanding.

My two similar experiences would be one where a pygmy angel was fine with the clam for about six months and then I saw gaping with the clam ... sure enough the angel would take a `poke' at it occasionally - clam has been fine with the removal of the pygmy angel to another tank. The other experience was one where the clam seemed to become malnourished ( maybe related to light ) ... I could not stop that runaway train.