Bad news.. I've watching my tank the last few days and noticed a couple of the cories scratching their gills on the tank decor. I've had several encounters with a very resistant strain of gill flukes from my lfs and still somehow decided to forgo quarantining my new livestock before adding it to my tank
I pulled the snails and added curpamine to the 55 and my 33 gallon as it's the only med that I've been able to successfully eradicate the flukes with. I realize that gill scratching can be cause by any number of things (my rams will sometimes flash for a little while after I perform a water change) but I'd rather play it safe this time around.