Tridacnid clam

Because we can't possibly feed them as much plankton as they would get in the wild and until they reach a size of 3" or more, they rely solely on planktonic food.

 

wow! do you have clams of your own or is this from research and internet reading? or both?

 

Both

 

this is strange because my the 1 inch gigas that I bought is now about 2.5 inches and growing.

 

Well congratulations. You're one of the lucky few.

 

I didn't reliase that they switched their diet as they grow. But now that I think about it, it makes total sense.

 

A lot of sea dwelling creatures do

 

I know of many others organisms that have this trait, I just didn't apply it to my claims. Brain fart...

 

Yeah it's true. I do suppliment my clams 2 times per week and they seem to do fine.

 

I haven't fed phytoplankton to my tank in a long time. And my maxima is growing, however is now over 3". But I lost a little guy not to long ago, in hind site, I wasn't feeding enough phytoplankton.