ThanksAre any of these fish new to your tank? Tiger barbs generally do better in larger groups where they have enough activity to keep their aggression contained within their school. However they're notorious for fin-nipping, especially long and flowing tails/fins like guppies. If the barbs are new, I'd probably look at rehoming/returning them and getting something more peaceful like a tetra to go alongside your livebearers.
The strange thing is is have other Mollies and long dinner fish and they don’t bother them.In my tank I have 12 fully grown tiger barbs. Its a 40 gallon breeder and would not consider anything else in there.
Not only do they nip, they continue to nip until the fish is dead. It is until then would they leave it alone, dead on the bottom or stuck to my intake tube.
I love tigers, but when their time has come, I will move to a more peaceful community aquarium.
The advantage to this tiger setup is they are extremely resilient and they are very vigorous.
It takes very little care with tigers. They are one tough fish. Great for the beginner.
No just the barbs. I'm afraid to experiment. I saw what they did to a 8" pleco that inhabited the tank for years before them. They killed him within two days. And they were babies back then.Hi ForceTen, you have no other fish there? I was wondering if mixing tiger barbs with some bigger type of corys could work