yellow tang

sheatime · May 23, 2015

Interesting thing happened that has me cautious towards adding fish to my tank now, added a healthy moorish idol, was eating pellet and and frozen mysis at LFS and ate when I brought him home, the yellow tang I have, decided to become super aggressive towards the idol. Anyone have any insight as to what may have caused this? The idol was larger then the tang

eatbreakfast · May 23, 2015

Tangs in general can be aggressive, particularly if the tang was in the tank first, and especially toward fish that have a similar body shape.

theblackpearl · May 23, 2015

should remove the yellow tang and put hum in your sump/fuge for a couple days while the new fish(idol) acclimates.....Then add him back when your lights are off(middle of the night)

eatbreakfast · May 23, 2015

That may work, also getting a large social acclimation box helps, it allows established fish to see and get used to new additions without being able to harm or chase them.

4FordFamily · May 23, 2015

Having several fish to spread aggression also works. Less conventional approach but works for me. My idol is in with lots of large Angels without issue. Many are very aggressive.

He's in there with a passer, emperor, Queen, blue face, potters, rock beauty Angels and a nasty Achilles tang that is very aggressive and a chevron and yellow belly hippo, and an aggressive banana wrasse. Very little chasing.

If you have one or a few tangs you're far more likely to have aggression issues IMO.

Idol are not very aggressive, and don't care well in captivity at all, let alone with aggression. Mine holds its own though, that being said.

Emperor is tank boss. The only way he shows it is when he's feeding, get out of his way. When he's at the nori rock, step out of the way or he'll pick at you. Other than that, equilibrium is reached.