Well, well, another Bronxite. Nice. We should compare notes.
I was aware that these fish were on the particular side, but my tap water is on the soft side, so I wasn't too concerned; I have peat and almond leaves.
The parasite thing is a little more alarming. If possible I'll buy some post-quarantine and deworming wild caught or captive bred fish. If that isn't possible (and I haven't seen anyone selling captive bred ones presently) do you know the course of treatment? I know that Levamisole is used with some success by loach enthusiasts, is that the preferred treatment? I'm gonna start looking into it myself now (thanks for the heads up on that) but if you happen to know already that'd be a start.
And... welcome to the forum. I rather like it here.