Pinched mantle research :what time of day does the Pm become most noticeable?

[reefkoi]

I don't know what i'm talking about but I have a lot of clams and a while back I had the typical PM signs in most all of my clams, with several per week dying and I thought I'd lose them all.
I figured out it must be the potassium I started dosing a few weeks prior to noticing the PM. I stopped dosing and the rest all lived.
So my theory is a clam can have a PM for reasons other than an "infection"
I don't have a research facility but I'm just saying it can mean several things wrong with it and not necessarily terminal to the clam if you correct the issue.
Chris

 

[Kalkbreath]

When you say your clams had "Pinched Mantle" ,
I take this to mean that the clams mantle would retract or withdraw only in one or a few locations along the outer most lips of the mantle.
as if the clam was being stung by something on its shell.
But otherwise the clam would flush out as if nothing is bothering the remainder of the mantel areas.


Clam stress can show up as various symptoms , but classic PM is specific in that the normal signs of stress (like gill discoloration and gaping don't become noticeable until the final stages .

Did your clams show traditional PM?

Thanks

 

[reefkoi]

Yes exactly, the mantle has a very unique pinched look. No gaping whatsoever, no bleaching. It was as if something was literally pulling in a spot on the mantle and curling it with a pair of pliers.
Like I said, I thought for sure they were all goners, it was an overdose of potassium! I don't know if anyone else has ever had that before.
We have so much to learn still in this hobby it's amazing really.
Chris

 

[ezcompany]

hello....

oh oops, sorry to disturb. leaving now.