Folks;

I've had an outbreak of Ich in my tank, and am using QuickCure. Have dosed
two treatments so far.

The newsgroup-recommended treatment that I know of is to follow the bottle
instructions, dosing daily until the visible spots on the fish disappear,
and then dose every three or four days for two weeks. Dose right before
lights out as lights can break down the active ingredients.

I've read that I should do a 30%-50% water change before each treatment, as
otherwise there'll be an increasing toxicity. My question is: should I do
these water changes before the initial daily treatments too (doesn't say
this on the bottle), or only before the
every-three-or-four-days-for-two-weeks treatments that follow?

Thanks in advance.