my fish keep nibbling one other fish's back fin why?

[shel]

i have some tiger barbs and tinfoil barbs and they keep nibbling at my blue acara's back lower fin why and how can i stop it?

 

[UniqueNN]

There will always be a power struggle, it may get ugly if you don't keep them separated.

 

[Giovanni]

If i were you,i would definitely separate them,barbs are extremely aggressive and territorial fish!

 

[Deren]

Barbs will nip at the fins of slower moving fish and those with longer fins. This is why you should not house barbs with such fish.

Also, tinfoil barbs grow very big. Specimens tend to reach about 15" - 18" long and 6" or 7" tall. These should be kept by experienced keepers only I'm afraid, your pet store should not have sold them to you if your tank is less than 600L or so.

Good luck, by the way tiger barbs are shoaling fish and should be in groups of 5 or more in regular tanks, and larger shoals in bigger tanks.

 

[Deren]

Barbs will nip at the fins of slower moving fish and those with longer fins. This is why you should not house barbs with such fish.

Also, tinfoil barbs grow very big. Specimens tend to reach about 15" - 18" long and 6" or 7" tall. These should be kept by experienced keepers only I'm afraid, your pet store should not have sold them to you if your tank is less than 600L or so.

Good luck, by the way tiger barbs are shoaling fish and should be in groups of 5 or more in regular tanks, and larger shoals in bigger tanks.

 

[pipman23]

perhaps they are not compatible....

 

[pipman23]

perhaps they are not compatible....

 

[rockeratr]

all tiger barbs will nip at fins, it is part of their nature. i keep all fin nippers in a separate tank.