Fighting Yellow Tangs

[sharicoe]

Hi, I have had 5 yellow tangs in my 200 gallon reef tank for a year, no problem..ysterday 4 of the tangs went after 1 and killed him!!!:sad1:
it is so terrible...now i see 3 of them going after 1 of them again...is there anything i can do? they all lived together in harmony for over a year! nothing has changed or been added to my reef tank...thanks

 

[nuccadoc]

The only way you're going to solve this is separate them. Do you have a quarantine tank? Apparently as they are maturing they are becoming aggressive. Need to act quickly before you loose more.

 

[K916]

Do you have an ammonia and nitrite spike in your tank by any chance? Mine did the same when my ammonia peaked

 

[enjetek]

separate them or get a bigger tank (most likely not the option youre going to take). im sure someone around you will buy one or some of them from you.