Only things like who feeds them and what they should and shouldn't eat. Their memory lasts about 5 seconds.
It is important to remember to put things in a goldfish tank, even goldfish get bored. Some of my suggestions for tank decor are artificial plants and a "hidey hole" for your goldfish.
This means that you cant remember things. As goldfish can not retain anything fo more then 3 seconds
All Goldfish make great pets provided you give them good water and food. Remember the basic rule of '1 inch of fish needs 1 gallon of water' then remember that your goldfish will grow to at least 12 inches long given good conditions.
going on experience, goldfish don't have memories but do have instincts. my goldfish knows that the yellow pot means food, yet it doesn not remember any other things that happen, it always freaks out when anything goes into the water, even if it is a feeder. so goldfish do not have memories, they have instincts.
Usually when they are about 2-3 years old. Goldfish can also die if you don't feed them enough, or too much. When goldfish are not kept in a clean habitat, they can get sick and die. Make sure to clean your goldfish tank at least once a week. Remember, goldfish mainly die from aging
Goldfish can only remember the past five seconds of their life.
Despite the popular myth regarding a goldfish's memory, they are actually quite intelligent little creatures and have reasonable memories.For example, my goldfish remember that when I open the draw below the tank I am going to feed them. They also go straight to where I normally put the food. Whether this is simple environmental conditioning is arguable, however, it does show that in this one area at least they can remember things over periods of days.Do not believe the rubbish about goldfish having short memories. They are like most creatures, they learn things by experience and training and remember them for their lifetimes. If they did not they would not survive.
That is up to you. Remember however that all the fancy goldfish can crossbreed with one another. If you are going to be buying/keeping expensive fancy goldfish then you would most probably not want to cross breed them and thereby loose the value of the fry.
Not happily or healthily. Those goldfish need at least 30 gallons of space to live happily and have a long life. If you do successfully breed your fish, remember to remove the babies ASAP. Goldfish like to eat their babies.
The thought that goldfish only have a memory of three seconds is false. Studies show that a goldfish has a memory of a few months. Goldfish have been taught to go through mazes or do tricks. The simplest way to prove that a goldfish has a memory longer than three seconds is to observe what they do right before they are fed. They tend to congregate at the surface near the human that feeds them. Goldfish clearly remember (have a memory) that seeing a human often leads to being fed. myth busted
The lifespan of a goldfish is determined by the care and maintenance of the goldfish and goldfish's home , whether or not it is getting essential nutrients and is fed a proper diet, and if the genetics of the goldfish are good. Also a factor that can determine the lifespan of a goldfish is whether the goldfish's owner did much needed research about the goldfish before purchasing one - or if they choose to remain ignorant about goldfish and their needs. If a goldfish is taken good care of through-out its life- and is not constantly, if not ever, subjected to stressful situations- other than the time it is acquired and introduced to its home (remember to always quarantine for at least 30 days before doing this) you can expect the fish to live up to +20 years- maybe even longer.
All fish have a memory commensurate with their need to survive. They will remember hiding places in their environment, they will remember the place where they are fed and the person doing the feeding. They will also remember what a net is and does and will learn to hide if they see one comming. There is now scientific evidence that goldfish (Black Moors are a kind of goldfish) have good memories and learn quickly under laboratory conditions.