Clam and Alk depletion.

[Baldyreef]

Ya problem is they don't fall over until the hinge has started to break. That's my indicator that they're on the way out. They never fall over until after the hinge starts to fail.
This is my current one on the way out. You can see the hinge separating. I have no idea why. I've read of it happening but 3 in a row is all I can take.

have all 2 been derasa? very very odd

 

[exnisstech]

have all 2 been derasa? very very odd

All derasa, the one above is the third to have a hinge fail. I'm totally baffled. They've all been on the sand never on the rocks. Different tanks and all clams from different sources, 2 of 3 captive raised. They'll do good for over a year then start falling over and that's the begining of the end.

 

[Baldyreef]

All derasa, the one above is the third to have a hinge fail. I'm totally baffled. They've all been on the sand never on the rocks. Different tanks and all clams from different sources, 2 of 3 captive raised. They'll do good for over a year then start falling over and that's the begining of the end.

makes me wonder if a maxima would do different for some reason, hopefully if you get another clam it breaks the streak