Because they are looking for food and may pick up gravel as they slurp their way along the bottom of the tank.
To have one fancy goldfish you need to start off with at least a 20 gallon aquarium kit. This kit will come with a filter, filter media, the tank, and likely some decor. You also need to buy a bottle of water conditioner, and some fish food so you can begin cycle your aquarium to prepare it for the fish.
Goldfish only die easily when they are not properly cared for.One goldfish needs a 20 gallon aquarium on it's own, and you need an additional 10 gallons for every additional goldfish (so if you have 3 goldfish, you need a 40 gallon aquarium at minimum).While this might seem excessive, it's really not. Not only can goldfish grow very large, but they are extremely high waste producers, and as such, when overstocked in a tank that is just too small, and without a filter along with weekly water changes, the toxins build up quickly and kill the fish.
No, goldfish are freshwater fish. Any goldfish you buy in the store are tank bred and not wild caught.
as far as i know, when the oxygen in the water gets used up or fouled, the fish come up toward the surface to get water that has more oxygen in it... it is an indication that the water should be changed.
swallow eggs
They are hatched from eggs
A freshwater fish (Carassius auratus) native to eastern Asia, usually having brassy or reddish coloring and bred in many ornamental forms as an aquarium fish.For the source and more detailed information concerning your request, click on the related links section (Answers.com) indicated below. Goldfish lose their color if they are kept in a dim light or they are placed in a body of running water, such as a stream. They remain gold when kept in a pond or in a bowl with adequate illumination.Goldfish have four color recepectors in their eyes compared to our three - the mantis shrimp has ten color receptors.The snack that smiles back! Goldfish!A gold fish is a kind of fish that come in some different colors (including gold) and they can be 1/2 - 24 in, and sold in most places for around 20 cents.
No, this product does not come with little items that children can swallow.
Think about this for a minute.. goldfish do not appear out of no where and they aren't artificially created. How else do they appear? Well they breed to produce eggs where goldfish fry (babies) come from.
No. When you swallow the semen, it goes to stomach and digested. Sputum comes from your lungs.
Goldfish are a form of carp, and they come in many colors, including white, yellow, orange, and mulit-colored.
The fresh water part .... Goldfish apparently come from Asia, however they don't live in the ocean because goldfish are fresh water fish.