I say either is OK. I am interpreting stored in the frig as months, not years. The more sugar, the less of a chance of mold.
Maple syrup stored in my frig last a long time, like over a year. Karo syrup, yuckie corn syrup last over a year. Just so you know, do not feed corn syrup to bees. I was just making a point of longevity, not endorsing.
Cheers