Goldfish are typically not found in deep water. They are freshwater fish that prefer shallow, warm water with plenty of oxygen.
Deep water often has lower oxygen levels and colder temperatures, which are unsuitable for goldfish. They feed on insects, algae, and plant matter near the surface and are commonly found at the edges of ponds, lakes, and rivers.
While they may occasionally enter deeper water, they do not prefer it and are not adapted to deep-water environments.