Yes, you would treat them as any other new fish.
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step up on the soap box for a minute...>

I am not an advocate of treating a fish prophylactically for disease or parasites. All treatments, involving meds, are stressfull on the fish,
IMO, you just may cause the ick you are trying to prevent. If it were mine, I would make the quarantine tank as stress free as possible...matching water parameters with that of the main tank, and feed a good healthy diet. Observe the fish for 3 weeks, then if it shows signs of an infection I would treat the infection...

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steps off the soap box>
So how about a few pics of the new fish???