Which ingredient is NOT part of a Swedish Fish cocktail?

The Swedish Fish cocktail is inspired by the popular candy of the same name and typically incorporates flavors that mimic the taste profile of that candy. This includes fruity flavors, which is why cranberry juice is often used; it provides a tartness that balances sweetness. Additionally, Blackhaus, a blackberry schnapps, contributes a berry flavor that complements the overall profile. 7-Up adds a bit of effervescence and sweetness, enhancing the mixed drink experience.

In contrast, peach schnapps does not align with the flavor profile of the Swedish Fish candy. The cocktail is focused on berry and fruity flavors, and incorporating peach would introduce an entirely different taste that does not fit with the intended outcome of emulating the Swedish Fish candy's unique and specific flavor. Therefore, peach schnapps is not a typical ingredient found in a Swedish Fish cocktail.