All Cichlids and Anabantids are territorial. Fish that protect their young and the area they have chosen to rear them in are called territorial. Many other species of fish are territorial too but there are too many to list them all here.
Some fish are very territorial.
male fish are territorial he is claiming his territory
Probably because they are just very territorial.
you can put a put a clown fish or a angel fish but you have to have a lage a place to hold the fish because angel fish a a little territorial
Yes they can, but with care, they are territorial. I have two of them and they have bitten the fins of other fish.
it could be for territorial reasons.
Fighting fish are territorial and can be very aggressive, they will kill other fish if you put them in the same tank.
Yes. Some species are territorial and will do as you said.
Betta fish can be territorial and aggressive towards other fish, but they are not inherently mean. Their behavior is a natural instinct for survival and mating.
No, betta fish are typically aggressive and territorial, so they are best kept alone in a tank to prevent conflict with other fish.
No most fish are friendly but alot of fish like sharks are very territorial just leave them alone and you probably won't get attacked
I suppose it is possible. Beta are very territorial fish.