clam preditors?

[ironman2]

Im having trouble with a derasa, it has not been extending it mantle nearly as much as normal the past few days. I pulled it out to examine it and found several tiny critters scurrying around its base. they are oval shaped anywhere from 1/16" to 1/8" diameter, they are flat, and they can swim. they look like they fold there bodys in half sometimes? any of this sound familiar?

 

[a4twenty]

can you post a picture?


sounds like a flatworm maybe ??? look through these

 

[ironman2]

they do resemble a couple of those pics, but I seen red flat worms at a lfs before and they dont look or act like them. they can move very quickly, and swim if they want to. do flat worms swim? they are a irridescent tan color

 

[a4twenty]

<a href=showthread.php?s=&postid=9238575#post9238575 target=_blank>Originally posted</a> by ironman2
they do resemble a couple of those pics, but I seen red flat worms at a lfs before and they dont look or act like them. they can move very quickly, and swim if they want to. do flat worms swim? they are a irridescent tan color

tan with small circles or dots, they use this to camouflage themselves while they sit on the mantle to dine.

here's the best link to a pic i can find. the sixth group of pics down, the tan one with the dots??

yes flatworms can swim and they will get larger than 1/8", a lot larger. if this is what they are i think you have to remove them manually. you can siphon them out or pick them off.

i don't know what i was thinking, look at the one on the right. Melev's reef has a great identification page.