more clams dead

[Delphinus]

Umm .. did you say heat wave? Has your tank been affected at all? If so ... I wonder if that's your smoking gun.

I'm pretty sure my losses (2 / 4 clams lost in the last month or so) have been directly, or at least indirectly related to some heat spikes my tank suffered about a month ago.

Darn things are pretty sensitive when you get right down to it.