Common misconceptions often cause undue worries among new fish keepers, and the harm presumed from touching a Goldfish stands paramount among them. Contrary to this belief, touching alone will not kill a Goldfish. However, excessive or improper handling can inflict significant stress on the fish, potentially damaging their delicate scales and slime coat, which protects them from infection and disease.
As a rule, only touch your fish when absolutely necessary, such as during medical treatments or while relocating the fish to another tank. Always make sure any handling is done gently and carefully to minimize stress on the fish.