[Ebook] Encyclopedia of Aquarium & Pond Fish – Directory of Pond Fish – Goldfish
Undoubtedly the most widely kept of all fish, goldfish exist in a far wider range of colors than their name implies. Goldfish are suitable for both home aquariums and ponds, although the different color forms vary in terms of their hardiness, and not all are suited to being kept outdoors all year in temperate areas. Goldfish are members of the carp family, but unlike most fish in this group, they lack any barbels around the mouth. This characteristic allows them to be distinguished at a glance from koi.
