more clams dead
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.
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