Clams eat plankton and other microscopic things but you can feed them popcorn I would recommend that you pop the popcorn before you give it to the clam because a popcorn kernel is like a rock to us and them so make sure you pop the popcorn first and make sure the popcorn doesn't have ANY butter. It has to be regular popcorn but you can put salt on it to make sure that it tastes like what the clam would usually eat.
You can feed them phytoplankton.
The symbiotic algae (zooxanthellae) that lives in Tridacna clams receive a food source and a safe place to live in exchange for providing the clam with a food source.
polar bears main source of food is fish, seabirds and sometimes reindeer
The Cheyenne's main food source is buffalo berry's.
Corn or maize was a primary food source.
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the main source of income in Ontario is clothes and food :P:P:P
main source for food and water
I actually think you should put the clam back into the sea you got it or in a random sea where it can feed itself. Cheeseman56: Actually, you HAVE to put the clam back into the ocean it came from, not a random water source. This is because the clam could effect the food chain of the ocean/lake, and cause other creatures to die.
Yes, after digging them, place them in a bucket of water and wait for nature to take it's course. Then cook them according to your recipe. Good way to rinse the sand out of them while you're at it.
carbohydrates
The main source of energy is from the sun.
Tacos