Do goldfish die in just tap water?

Goldfish can suffer in tap water due to chlorine and other chemicals commonly found in it, which can be harmful to their health. If tap water is treated and dechlorinated before use, goldfish can thrive. It's essential to use a water conditioner to remove harmful substances before introducing fish to tap water. Therefore, while they won't immediately die from tap water, it can lead to serious health issues if not properly treated.