Can I store the opened dry cat food in fridge?

I'm buying the few different bags at time: two or three and giving to my cat simultaneously.  Can I store the bags in refrigerator to last longer.  I got advice to take it out, but when I smelled it: it smelled nice in refrigerator and when I took it out it start smell by fish oil.  Does someone know?  There is the vitamins and oil and I thought they are better preserved in fridge (as I do with my vitamins).

You can store dry food in the fridge Pour the food into an airtight container and then put in the fridge.