In nature clams are frequently dug right into the reef, surrounded by encrusting organisms- so sponges shouldn't cause a problem. As long as the mantle is not retracting where it contacts the sponge I think its ok.
I've been debating whether or not to remove a sea squirt that grew just below the mantle of one of my maximas. So far, it hasn't caused any retraction.
Thank you all for the reply's, and thanks seamadien for the complement. I have sponges growing all over the tank. I will post a pic of the sponges ASAP.
Not speaking about this case in particular, but I seem to recall that too many sponges was sometimes a sign of poor water quality. Anyone else heard this?
I don't see any signs of bright white new growth in the shell. Was it just hidden? (BTW - nice flat worms :wink: ) Lack of any signs of growth could be a sign of a problem.
Can anyone ID this sponge? And answer the original question! I know I have a few flatworms, but they have to eat to. And I see a white edge on the clam. You may need to look harder dude.
