2. the great circle of the earth that is equidistant from the North Pole and South Pole. 3. a circle separating a surface into two congruent parts. 4. celestial equator. [1350â1400; Middle English < Medieval Latin aequÄtor, Latin: equalizer (of day and night, as when the sun crosses the equator).
Commercial goldfish food -- available as flakes, pellets and granules -- contain all the nutrients goldfish need, and should form the major part of their diets. Overfeeding goldfish allows uneaten food to decay and contaminate aquarium water. Goldfish feces is another contaminant.
Goldfish are a specially-bred ornamental variety of carp and thus would eat naturally-occurring carp food in the wild, such as insects, tadpoles and so forth. Fairground goldfish can live for years and grow to astounding proportions, and like all carp can learn to feed from a human hand. (Watch out for the teeth.) They can also be released into the wild and will happily interbreed with local carp, losing their conspicuous colouring after a few generations.