Identification Please, this should be a challenge

[rae gordon]

I recieved this over a year ago and has been very hardy. It has been a good indicator of my water quality, if my peramiters are off, it closes until my water gets back to normal. It does not get direct light, and apparently gets enough food, but that is questionable.



See if this works, first image in body of text

 

[rae gordon]

Try again

 

[rae gordon]

I give

 

[rae gordon]

ok attach the standard way

 

[rxdi]

Looks like a scallop or oyster to me.