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.
There are many kinds of goldfish. The most common kind is golden-colored, but goldfish come in many different shapes and sizes. Many gold fish have fancy tails. Another common kind is called a black moor, which is black colored. Wild goldfish are called prussian carp and are silver-green in colour.