There are a few species that can survive alongside goldfish, including Zebra Danios and White Cloud Mountain Minnows. These fish should never be added to a goldfish tank if the goldfish inside are larger than they are, s... More »

Fish that can coexist with goldfish include white cloud minnows, rosy red minnows, rosy barbs, charming weather loaches, zebra danios, tetras, guppies, wimples and other goldfish. Goldfish may eat smaller fish, so potent... More »

Minnows and Danios are some fish that can live in the same tank as Goldfish. However, it is best that no other fish are in the tank with them. More »

A number of quick, relatively painless methods have been devised to humanely dispatch fish. A commonly used method is clove oil to anesthetize the fish, followed by an alcohol bath to kill the fish. Another option is to ... More »

According to Encyclopaedia Britannica, the goldfish, a member of the carp family that originated from ponds in East Asia, is an egg-laying fish. A fish that lays eggs cannot be pregnant, and therefore no special designat... More »

According to FishChannel.com, determining the gender of a goldfish can be difficult, as the fish are weakly dimorphic. However, depending on when the fish are checked, it can be possible to determine their gender based o... More »

To care for a goldfish, house the fish in an appropriately sized tank filled with well-maintained and well-filtered water. Feed the pet a goldfish-formulated diet two to three times daily. More »