That is s a great idea (and a 'duh' moment for me). As fumbler with plants, I have a question. Will a window without direct sun also keep the plants happy during this traumatic phase? In other words, its a dim window better for them than ich treatment?
FYI, after bad experiences with salt in the past, I use Ric-Ich and more than the normal darkness time, as well as removing carbon and higher heat.