There might be behaviour differences depending on the age of the fish such as the speed at which they swim, or the amount of swimming that they do regularly.
Not only can they behave differently, they can look different too. Some fish will move more slowly, some fish may appear to be "resting" more often. Some fish colors become more vivid with age, some fade with age. Some loose their markings with age, and others develop other markings as they age. So it's not really easy to answer that question when talking about all fish. When talking about a specific fish it's easier to answer.
Fascinating. But the many different species behave differently and have different methods of courting and spawning and fertilising the ova.
theyasdfghjk
An average child aged 10 should have 4 fish fingers.
they dont behave in small or large places because they only behave in the water
They behave like a normal fish
Dolphins move up and down. Fish move mostly in a straight line.
No fish breathe through their gills. (simiar organ to lungs yet functions differently)
The betta fish will see the mirror and then will be curious about it, because the mirror reflects the betta fish and they might think that it is another fish, so the fish will act differently.
according to my calculations all fish are not the same because they aren't all the same kind of fish, don't do the same stuff and function differently.
Fish may engage in behaviors such as schooling, chasing, or territorial displays when they see another fish. They may also engage in courtship behaviors if they are of reproductive age and seeking a mate. Responses can vary depending on the species and social structure of the fish.
he was a fish