Aggressive fish you've had to remove...

I had to remove my large female Bangaii because it would not stop chasing my leopard wrasses.

Also had issues with my orange spotted filefish nibbling lobos and fungia. But hey, this is their tank now, the corals had to find new homes. The ones that survived that is.
 
Tomato clowns

Tomato clowns

Ok I have a mated pair of tomato clowns that are eating anything new in the tank. tried to catch with nets and food for a full day. Im gonna try a bag with food in it and see how that works. Any other ideas would be great. Thanks.
 
believe it or not, I had a yellow tang that was demonic. Put a heniochus butterfly in after about a month of the tang being in there and he attacked it voraciously. Luckily I was able to catch the butterfly and give him away
 
Ok I have a mated pair of tomato clowns that are eating anything new in the tank. tried to catch with nets and food for a full day. Im gonna try a bag with food in it and see how that works. Any other ideas would be great. Thanks.

Do they attack your hand? I can catch my marroon by letting her attack one hand while I bag her with the other
 
Mine was a Purple Pseudo - killed a whole school (7) of green chromis and harassed anyone not 3 times his size. Had to take my tank apart to catch him. My Tomato is pretty chill. As mentioned, a lot of it is the individual fish. Maybe they had bad childhoods?
 
cherub angel C. argi - cute little thing but an absolute tyrant.

sixline wrasse - positively murderous. With its sharp teeth it would do damage with every attack. It would actually ambush its victims.

lawnmower blenny - would harass all newcomers. Eventually carpet surfed.
 
Wow, these are some fish I never thought had it in 'em! Firefish attacking clowns? Get outta town! But I'm not sure I would call angels who pick at corals aggressive. They are just feeding - normally too.

Yeah, started this thread over a year ago and didn't know half of these had behavioral problems...so, at least we've been warned before buying them.

BTW, it's been a couple of months since you trapped your Lemonpeel and isolated him for a week or two. Did he finally get along with the others or did you trap/remove him?
 
Two tomato clowns, blue damsel, yellow tail damsel and a really mean three stripe damsel. I've learned that you can't catch a damsel in a reef tank. So the two tomatos were my first priority because the female would bite me every time I went into the tank. I could not catch those two clowns no matter what I tried...........unfortunatley I figured out I'm not smarter than a fish......let alone a 5th grader. So, I tore down the tank and got the two clowns. The tomatos were so aggressive that I had never added any new fish so I never realized that the three stripe was aggressive..........until later. After removing the tomatos, I decided I'd like to have a yellow tang and a powder blue (tangs are my favorite fish) but unfortunately the three stripe killed them both and a good size naso as well. Not only was he a killer, he would make a mess of the sand in the tank. He would hunker down and swish back and forth pushing sand all over my corals and damaged a chalice he buried. After months of trying every trap and technique I could find on reef central, I finally had enough and for the second time in 6 months, I tore down the tank. This time, I wasn't taking any chances and I took out every damsel including the three stipe, the blue and the yellow tail. Now, hopefully I can have the Tangs I want.

Tore down the tank twice? Wow! When all else fails, that's a last resort. I can only imagine the hours you spent tearing down, then setting back up just to remove them.
 
I will second that! I had two blue damsels that squabled for a week then settled down two months later some thing must have snaped and the more boisterous one of the two harrasted the other blue damsel to death literaly. I now just have the one he occasionally darts at the firefish but my coral beauty and 2spot candy hog wrasse keep him in check.

Although I am considering removing the hog wrasse as he has taken to intimidating my sea grass wrasse just recently they have been fine previously for about 3months, I think it may be down to the 2 spot getting older and therefor more aggressive, he doesnt bite the sea grass he just goes up to him with his mouth open and the sea grass wrasse will only take it for so long then go and hide in the sand for the rest of the day, I am now down to the sea grass just coming out in a morning to be fed which is such a shame as he is a beautiful fish and a right charator and even feeds out my hand and comes and get a tickle.

Any suggestions as to what I can do to releave this problem apart from taking out and selling on the 2spot candy hog wrasse???

It's been a while since you posted. What's the update on your wrasse? It's neat how we can hand-feed certain fish. My maroon clown is very docile when I hand-feed her, although by nature they're usually aggressive.
 
I had a coral beauty that started picking at corals. The fish had to go. Had to tear down the tank to get that little b***h out.

Then after I had upgraded to my 120, I had a yellow bellied damsel that decided he liked coral polyps. I've never heard of a damsel eating coral, but I guess he never read the book. So, tank tear down again. Since there were 4 of these damsels in the tank, and they all looked the same, I had to catch all 4 of them.

More recently, I bought 4 allen's damsels. Some of the most beautiful and peaceful damsels you can get. Well, it turned out that two of them were not allen's, but some other damsel. Their markings were close, but once you saw them together, you could see the difference. Well, one of these rogues wanted a piece of every other fish in teh tank whenever he could. He spent his days chasing and harrasing. He would even go in to the lair of the gudgeon gobies and attack them in their home. Damsel goes in, puffs of sand come out of the hole, damsel comes back out. Just like a cartoon. He killed 5 of my chromis and who knows who else he harrassed to death. After many attempts to net or trap him, I tore down the tank to get him. Since there was another that looked like him, I took him out, too. I know its racial profiling and its wrong, but I was taking no chances. Since then, all is peaceful.

Notice that all of the fish I had to get out "shouldn't" have been a problem. I guess I just got lucky. So if you need tips on tearing down a tank to get to a fish, I have done it 3 times and I know what I'm doing.
 
Blue damsel, for some reason it took a serious dislike to my Tuka Anthias, so out it came.

Catch box put in tank tonight to remove the Sohal for some sump treatment.
Its harrasing the hell out of a new Olivaceus Tang
 
Well after over a year of having my Maroon Clown (who was gentle enough to hand-feed), watching her have constant disagreements with my nearly 12 yr old False Perc and tired of banishing her to sump prison (since she almost always started the fights), I eventually gave her back to the LFS. They were cool enough to let me donate her to their main display tank at the front of the store. So, she's now swimming with others in a 500 gal. reef tank. I just hope she doesn't bother their corals.
 
This subject brings me back 15 years ago. On Father's Day my wife and kids bought me a Narvarcus Angel. I had been wanting one for quite awhile. We named it “Narvy” and it was, by far, my favorite fish EVER! I spent 2 years training it. First I got it to hand feed when the tank was tapped. After a long while it got to a point I could literally "pet" the fish like a dog any time I wanted. With lots of personality, it truly was unlike any fish I had ever owned.

A few years later I purchased a 6 Line Angel. When we put it into the show tank it made a b-line for Narvy. It happened too fast to react! There was a fight and Narvy lost. I pulled the 6-Line out and put it into another tank. From that point on, Narvy stopped swimming and eating. Within a week Narvy died. My wife, the kids and I had a proper burial in our backyard. The kids made a headstone and all. 

For this I will never buy a 6-Line anything!
 
I just removed a clarkii clown about 2 weeks ago.. I loved the fish but he was a jerk and was in the way of some other fish I' like to have.. I have a reef so I really wanted a peaceful environment. I got the Clarkii probably 5 years ago when I bought a fully set up system. I tried for months to catch him with a net etc. and could never get him. Soooo, I went fishing.... Got the smallest hook I could find, Bent in the barb, baited with some krill, (her favorite) and got her within literally 2 seconds. Traded her in and she is happily swimming in the lfs.. Now I have a damsel that needs to go... Going to try a trap because I think he's too small for the hook..
 
Niger trigger, I came home after work one afternoon to find that my clownfish had a chunk of flesh taken out of it's dorsal area by guess who? The clown survived for a short time before I decided that it was best to euthanize him. Soon afterwards the Niger was removed to a tank of his own.:(
 
I have Mystery Wrasse in my tank that just recently killed(harrased to death) my PJ Cardinal. He has yet to be removed, but I think he may just have to go before I add any new fish to the tank. Mind you the tank he is in is only a 20g Nano. The only other fish now are a pair of Mocha Clowns and a perchlet hawk. He leaves these fish alone. He had it out for the poor PJ!
 
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