I've dipped plenty of clams and they all did fine. Leaving a parasite on them will certainly cause more stress. At this point, your clams look like they're going to die. You've got lots of ideas from everyone here, so pick one and do it.

Another thing you can try:

Cut the top off a 2l clear soda bottle and drill a bunch of small holes in it so water can flow but fish cant get to the clam. Place it over the clam and see what happens.

It may help you determine if indeed it's a nipping problem that you have.

i think i've solved the problem. both clams have fully opened and neither of them is gaping.

My cleaner wrasse does not touch my clam.

I would guess that so long without a water change, their could be heavy metal build up in the water wich is killing the clam.

YOu should have your water analysed for heavy metal.

clams are fine. they're fully open and no signs or degeneration

Not yet :mrgreen:

So what was the cause? Was it the dip that helped?

I didn't dip it. I took out the cleaner wrasse and my clams are now fully open. Cant tell anything was wrong

Quick QUICK CLOSE THE THREAD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

:mrgreen::mrgreen::surprise: thanks I needed that!!!!