Doing behavioral research on live joubini

[Animal Mother]

The dark spots on the back of the mantle are hearts.

I think Dwhatley has described that twitching motion on some of her mercs too.

 

[Jean]

tentacle twitching/curling (especially in a corkscrew pattern) is a sign of stress. FYI if they do this in the tanks check your water parameters ASAP especially if they're near the water/air interface as it definitely seems to be correlated to a decrease in water quality.


Writhing arms all over the body seems to be almost a "grooming" behaviour, they'll often shed sucker linings during this process....all quite normal

j