Can I substitute marmalade for peach preserves? I've got a recipe here for fish done with a glaze made of peach preserves that looks pretty tasty. However, some members of my household dislike peach. Citrus is a classic pairing for fish; can I swap out the preserves for a marmalade? I'm not 100% sure on the differences between the two. Or is there another substitution that would work better?

Recipe: Ginger-peach glazed tilapia
In addition to the sweetness, marmalade has a pronounced bitter flavor that could overpower the fish. It seems that others feel the same way — there are few online recipes for fish with marmalade, and of those few, most are for salmon which has a more robust taste of its own to balance out the marmalade. Perhaps something like an apricot preserve would be more in the spirit of the original recipe?