A kind of goldfish · also called Feeder goldfish

3 views: its portrait, and how it looks in the comparison photos.
About
The common goldfish is a small pet fish breed that typically measures about 4 inches (0.1 m) long.
This breed is the original variety from which fancy goldfish were developed. While pet goldfish in small tanks often stay around 4 inches (0.1 m), they can grow well past 12 inches (0.3 m) when raised in outdoor ponds. Male and female common goldfish grow to similar lengths, though females become slightly rounder during breeding season. Their final size depends heavily on their water quality, diet, and living space.
From Wikipedia
The common goldfish is a breed as well as the standard and most common variety of goldfish and a family of Cyprinidae in the order cypriniformes. Goldfish are descendants of wild carp from East Asia.
Read more on Wikipedia →Text from Wikipedia’s “Common goldfish” article, CC BY-SA 4.0.
2 on the site
Weight
1.06 oz (30 g)
Quick answer
A typical common goldfish measures about 4 inches (0.1 m) long, stands 2 inches (0.05 m) tall, and weighs roughly 1 ounce (0.03 kg). At this size, it is roughly the length of a standard crayon.
Typical figures, the same ones every comparison on the site uses; real ones vary.
More like a common goldfish
Compare it
Next to anything: a person, a car, another goldfish.