KrazyKuch's & Michika's 180Gal Tank Build

[Marlin65]

Originally Posted by michika

The mantle retracts when you try to disturb it. The clam is just so big at this point that for a few years now it hasn't been able to close is shell. It still has regular clam type responses to stuff falling on its mantle, passing your hand over the mantle, etc. it just can't close its shell. Make sense?

In the wild they probably get overgrown around them so they don't have to hold their shells when the get bigger.
Just a thought don't know that for sure.
Hope you figure out what is wrong with it.