Pinched mantle & freshwater dip

[Delphinus]

Originally Posted by Doug

I had a maxima, that I got from another aquarist. Not sure if you remember the pics, but I say it had the disease from the start, when he purchased it. Now the others were not in the tank at the time, and were added right after it died, but I wonder if it can carry over in a tank with no clams for a few days?

I missed this part before I posted the other reply.

PM is supposed to be protozoan, so I would guess it could carry over in a tank with no clams for a few days. I'm not sure how long the "fallow period" would have to be, but surely a couple of days would not really be enough?