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Pulsating clams

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trout

Active member
Joined
Nov 1, 2011
Messages
40
Location
Sheffield, United Kingdom
Hi all,

On occasions my clams start to pulsate either individually or together. Is this feeding behaviour? It often coincides when I clean my tank's inner glass. I am assuming they are filtering free swimming algae or diatoms!

Thanks :wave:
 

stylaster

Well-known member
Joined
Feb 1, 2006
Messages
252
Location
Kelso WA
what they are doing is purging debris from their gills. Mostly likely the algae scraped from the glass is to big for them to digest so they are blowing it back out
 

trout

Active member
Joined
Nov 1, 2011
Messages
40
Location
Sheffield, United Kingdom
Is there any chance you can video of this please?
I will do that for you.

Mine do this when I dose phyto and oyster feast, but my clams are 4".... would this still be the same?
I used to dose oyster feast and my clams behaved in the same way as I described above. They exhibited pulsation movements as if they inhaled the oyster eggs.
 

SaltyDog2

Clam Eater
Joined
May 1, 2007
Messages
55
Location
Lewiston, ID
I have 2 derasas and 1 squamossa and I can't say that I have ever seen them pulsate. They do slam shut when ever I accidentally drop food on them or if a fish gets too close.
 
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