Ich In Tank With Scaleless Fish

I've had it in a tank with dwarf chain loaches, and used a medication rather than the salt method. I know some people don't like to use meds but they do work. My medication of choice for ich is King British Original Formula WS3. I've used it successfully at half dose, which is what you use for scaleless fish. My amano shrimps even survived it - I just couldn't catch them to put in the quarantine tank for the duration. But I did extend the course by a couple of doses to make up for the half dose.
If you do use a medication, increase the temp to 30 deg C or just under, and follow the dosage instructions to the letter - well apart from adding a couple more doses on the end.