Can One goldfish kill other?

Even if your tank is very spacious, goldfish will sometimes fight and bully each other if they are in competition for resources such as food. While it is easy to inadvertently overfeed goldfish, take care not to underfeed them either.

Why is one goldfish attacking the other?

The most common cause of a goldfish being territorial is if they are jealous of other fish in the tank or if the tank is too small. Territorial behavior is distinguished by chasing and nipping other goldfish away from a certain area in the tank.

Will a bigger goldfish eat a smaller one?

Goldfish by nature are not aggressive, and are not predatory. The short answer would be, “No, they don’t eat each other”. But, if they happen to come across small fish (e.g. baby goldfish), they do not discern, and they will eat it if they can catch it.

Do different types of goldfish get along?

Different types of goldfish can do well together, while others can be a bad combination. In general, faster moving fish should not be paired with slower moving ones as they can cause those fish to starve. Common goldfish tend to do well with other goldfish of similar body types like comets and shubunkins.

Are my goldfish fighting or mating?

How do you know if goldfish are mating? The male goldfish will develop small, white spots along their gills (these can often be mistaken for signs of disease, so look carefully!). At the same time, the female goldfish will become fatter and more rounded. The male goldfish will then chase the female around the tank.

Can you mix goldfish with other goldfish?

Obviously, multiple fancy goldfish will do well together, but keeping fast-swimming common goldfish with long-finned fancy goldfish is a big no-no. Author Note: You must match personalities and energy levels. That includes all fish within the goldfish family as well.

Are goldfish territorial fish?

Goldfish are not territorial and happily school together for game “round the tank” but often prefer to just mosey along alone but still in the company of others. Be wary though of too many fish in a small tank. Goldfish are heavy polluters and can foul their tank quickly if you don’t have excellent filtration.

Is it bad to have more than one goldfish?

The risk factor here is that more than one goldfish will overload the environment as their waste product can be toxic to them. Goldfish are very hardy and can survive in less than ideal conditions, but it’s not necessarily true that they’re thriving. Bear in mind that a healthy goldfish should reach to about 24cm by their second year.

What does it mean when goldfish chase each other?

When goldfish chase each other, it can be a sign of one of two things. The first potential meaning behind this behavior is that the fish are courting each other or attempting to mate. If this is indeed the cause for the chasing behavior, then you may not have anything to worry about.

How do you know if a goldfish is healthy?

Goldfish are very hardy and can survive in less than ideal conditions, but it’s not necessarily true that they’re thriving. Bear in mind that a healthy goldfish should reach to about 24cm by their second year. Look for black spots or abnormalities on the fish to detect the effects of their waste product on them.