ID for me

http://i299.photobucket.com/albums/mm317/tadake/DSCN2877.jpg

 

which part ?

 

the red and white things under the rock the one on the left has a mouth the opens and closes but neither travel

 

it appears after looking it's a muscle ( clam ) of some sort , pretty though.
they appear to be encrusted on the rock ,
I love muscle's/clams... they actualy filter feeders and they take in nitrates.

 

That would be my guess as well(calm) Luna

 

Your bivalves either belong to the Jewelbox family (Chama and related genera) or the Rock Scallop family (Spondylus and related genera). Both are kinds of oysters, rather than clams or mussels. Neither clams nor mussels attach to rocks by one valve, but most of the oysters do, allowing only one valve to hinge. They should be harmless filter feeders, but it may be difficult to keep them alive long-term due to their feeding requirements. Good luck!

Cheers,



Don

 

The lower one that you say opens & closes is a barnacle. Barnacles fall under the crab species. They are filter feeders, feeding on plankton. They can reach sizes upto 2 inches across & 3 inches in height. Some of them have very colourfull fans to filter the water. The other top organism is a rock clam. These clams grow on rocks. They have two shells as all other clams but one of the shells is permanently attached to the rock on which it has grown. Excellent filter feeder. Will need plankton to survive. Both the creatures will also need continuous calcium & trace elements addition along with plankton for good health. Both will accept any liquified or liquid filter feeder foods.