First of all a male goldfish would be chasing a female goldfish depending on the age. Now a female goldfish in view from above one side would be larger. Now a male golsfish in view from above would have more even sides. That is probably the easiest way to tell.
simple take the males and females apart or get a tank divider
Goldfish can be told apart based on their color, body shape, and fin shape. Additionally, each goldfish may have unique markings or patterns that can help differentiate one from another. Size differences can also be a factor in distinguishing goldfish.
yes
it depends what you are telling apart
A goldfish with a red head has a distinct coloration that sets it apart from other goldfish. The red head is a unique feature that makes it easily recognizable.
As humans we have a hard time telling penguins apart. However, They can tell each other apart by distinct vocalizations.
A wedge is used for pushing things apart.
The property that would be most useful in telling hematite and magnetite apart is magnetism. Magnetite is strongly magnetic, whereas hematite is not magnetic. This distinction can help differentiate between the two minerals.
yes you can, it is very simple. :^)
they are black that have long flowing fins and bulging eyes simaliar to a telscopic goldfish the most not be kept with common or comet goldfish they also are visually impared ! overall they are a beautiful and playful breed of cold water fish!!!
for the sense of "telling apart": confuse, conflate for the sense of "excel" : embarrass, fail, stumble
A wedge is a simple machine that can be used to split things apart. It works by applying force to separate objects by pushing two surfaces apart. Examples include axes, knives, and chisels.