Deadly Butterfly Fish

[ScoobaDiva]

Hello,
I have three new Heniochus Black & White Butterflyfish in my 500 gallon tank. When I had 2 everything was fine. I added the third and they have turned on my other fish. They have killed my 12” grouper, my powder brown now has no top fins and they are attacking the 6” porcupine puffer we added today. They attack 24/7. I don’t know what to do! Has anyone experienced this or any suggestions?

 

[i cant think]

Hello,
I have three new Heniochus Black & White Butterflyfish in my 500 gallon tank. When I had 2 everything was fine. I added the third and they have turned on my other fish. They have killed my 12” grouper, my powder brown now has no top fins and they are attacking the 6” porcupine puffer we added today. They attack 24/7. I don’t know what to do! Has anyone experienced this or any suggestions?

Your best and likely only bet is removing all 3, these fish are highly territorial and can be nasty when it comes to protecting it, with 3 they’re likely trying to fight everything else for territory (Your other fish will have large territories compared to our reef fish).