Clam and Sand sifting gobies

I have 2 yellow headed sleeper gobies and they are constantly droping my crushed coral on to my new maxima. Does this matter? or is it ok.

I tried to imagine that clams generally in the ocean would get stuff in them... comments anyone?

 

not positive on this one since ive never had a clam... but i vaguely remember reading somewhere that it irritates them and they do not fully open then, thus not getting enough light to their Zooxanthellae. but u may want to wait for a clam owner to put in their 2cents

 

ya i dunno... its seems to just retract sometimes... when a fish is near.

 

I would be more concerned as to why the maxima is that low. They are a rock boring clam, and need to be placed on the rock work, not in the sand bed.

 

substrate also... not just rock.

http://animal-world.com/encyclo/reef/clams/TridacnaMaximaClam.php

 

its also a good sign when the clam retracts its mantle if something comes too close. its alive !! lol. mine does it if a fish comes near or if i do also.

 

My dragon goby would blast substrate at times all over my clams... I think he enjoyed terrorizing the clams

For the main part the clams were ok. I would see a grain in their mantle. But either water flow or them retracting their mantle would blow any grains loose.

 

ya i tried placing it on my rock but it "kicks" its self off. When its on the substrate its seems much happier. anyways its seems to be pretty happy but i was concered.. guess maybe it doesnt matter.

 

Constant irritation will most likely kill the clam.

 

Ummm, no. Just rock or something solid, not substrate. As was stated in even your link