Tank aggression with new arrivals

sushiboss

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Hello fellow reefers

I finally put together a decent stocking for my tank after finally obtaining my last fish (beautiful specimen pintail wrasse) and oddly enough a filefish as a utility fish for cleaning up pesky aiptasia.

Prior to these fish my current stocking was

1 possum wrasse
1 yellow tang (tank boss)
1 sailfin tang (close second possible tank boss)
1 tomini tang
1 flame hawk
1 ywg and his partner the annoying pistol shrimp
2 clowns
1 starry blenny
1 magnificent foxface

Tank is 4-2-2” 150g with decent rockwork and plenty of hiding space

Ultimately the sail fin tang will be rehomed
(He was only added to ease aggression between current stocking and the new arrivals of the tomini, and the magnificent foxface) so ultimately he’s not in the plans due to tank size.

So here we are today (10 weeks since I added any new fish); and I added my final two fish (filefish and pintail wrasse) in the hour before lights out which I began with feeding / introduction of new fish

Up to this point the tank was 95% peaceful with some random points of aggression directed at the foxface but nothing too serious from what I was seeing

Immediately upon adding the new arrivals the current tank boss (yellow tang) starts doing that swim up to the new wrasse and kind of posturing up to him (not biting or tail swiping but you can tell its aggression)

I put up a a decent size mirror 6-6” on the front panel which I did when I added the last batch which is working. Aggression amongst themselves has mostly ceased as all tangs and foxface are currently battling their reflection.

But that didn’t surprise me he’s sort of a dick. My main question is I’m noticing new aggression amongst the tangs (mostly settled by this point) and even my tomini randomly nipping at my foxface spines) and I’m curious if this is normal and due to new inhabitants or what?

What else can I do to ease the tension that’s currently going on? Is there any additional precautions I could take?

IMG_2616.jpeg
 

Miller Aquatic

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Sometimes/most times for me/ adding a new tank mate stirs up the hierarchy and causes a little bit of aggression. I normally wait it out unless it doesn’t resolve itself after a week or so. Tangs can sometimes be very territorial. Some things you can try is if your rock work isn’t glued together I would arrange some of their territories. Also are you feeding a lot of nori I would add quite a bit of thick nori to a clip and supplement them throughout the day they should have access to nori all day. My scopas tang was very aggressive originally flapping his knife at my bicolor but by 3 days they’re buddies.
 

littlefoxx

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I would wait and see if it settles down after you take the mirrors off. But if the tomini wants to F around and find out with the spines then he will do it I guess lol. I had a hippo tang who did that with a lionfish. Got stung and never did it again
 
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sushiboss

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I would wait and see if it settles down after you take the mirrors off. But if the tomini wants to F around and find out with the spines then he will do it I guess lol. I had a hippo tang who did that with a lionfish. Got stung and never did it again
the foxface has gotten scuffed up before but it’s mostly ceased from what I could tell.

Today was a bit of an uproar but I’m hoping they accept the filefish and wrasse. Both for utility and pests but mainly aiptasia.

Man my tank exploded with aiptasia after using aiptasia x. It’s out of control and my flame hawk has eaten the 20 peppermints I added so I’m sorta sol as there’s no real catching any fish without breaking the tank down
 

littlefoxx

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the foxface has gotten scuffed up before but it’s mostly ceased from what I could tell.

Today was a bit of an uproar but I’m hoping they accept the filefish and wrasse. Both for utility and pests but mainly aiptasia.

Man my tank exploded with aiptasia after using aiptasia x. It’s out of control and my flame hawk has eaten the 20 peppermints I added so I’m sorta sol as there’s no real catching any fish without breaking the tank down
I would think they will mellow out since they are not tangs for them to challenge
 

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