The best way to clean a dirty goldfish tank is to use a mild cleaning agent and warm water. Soak a cloth in the cleaning agent and wring it out. Wet the cloth and wipe down the sides, top, and bottom of the tank. Be sure to get into all the nooks and crannies. Finally, dry the tank off completely.

Yes, goldfish can survive in tap water, but they may not thrive. Make sure to provide them with a suitable tank and filter setup.

Goldfish do not need a bubbler, but they do enjoy one. A bubbler is a piece of equipment that helps to keep the water clean and clear.

Goldfish typically live around six years.

Goldfish need a tank that is at least 10 gallons in size and has plenty of plants and rocks to hide under.

On average, goldfish live around six years.

Goldfish can grow to the size of their tank, but they typically only reach that size after about two years.

A 10 gallon tank is the minimum size for two goldfish.

A 1 year old goldfish is about the size of a pencil eraser.

A 2 goldfish will eat about 1.5 pellets per day.

There is no scientific evidence to support the claim that goldfish recognize their owners. However, some anecdotal evidence suggests that some goldfish may recognize their owners from brief contact or a glimpse.

Goldfish cannot hear human speech, but they can sense vibrations in the water and use this information to orient themselves.

There is no universal answer to this question, as it depends on the individual fish’s personality and how it is being treated. Some fish may enjoy being petted, while others may not feel comfortable with it.

Generally, goldfish can go about three days without food.

Goldfish do not need darkness to sleep, but they do need a dark place to hide.

One way to show your fish you love them is to feed them regularly. Another way is to give them a comfortable place to live and keep them healthy.

Goldfish can eat a variety of things, including vegetables, fruits, and pellets.

Goldfish spit out food to protect themselves from predators. Predators, such as cats, can see through the water and could snatch the goldfish if they were eating. Goldfish spit out the food in order to create a cloud of bubbles that will make it difficult for predators to see what they are eating.