Is it okay at this frequency of wc?

Hi All,

In a effort to get my baby silver back in shape I was wondering if it was okay to change the water(say 25%) every other day (aged water, removed chlorine, ph matched, heated at same temp as tank water). I know the water cannot be exactly matching to the actual existing tank water, but was wondering if this would cause too much stress on the fish. I want to get this guy healed up as much and as soon as possible...how about every days? Does that sound like a better idea? I will be adding melafix/salt at every water change btw...