Yellow Tang vs Copperband


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Hey guys,

I have two tangs in my 4-ft tank - one is a medium-large yellow tang and the other a small bristle tooth tang. The BT tang spends his days chasing blennies but the YT is very chilled and friends with everyone.

Yesterday I introduced a Copperband and it was hate at first sight from the YT. The Copperband came from a very large tank that had two YT in it but my YT has never been with any other "similar" fish.

I was expecting a problem but just wanted to know if it is likely to calm down or is this going to be a problem ? Also and "recipes or tricks" to help them get along ?
 
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Yes, the YT will do that because they look similar (conspecific). What I do, just before sunset, say an hour, hang up a mirror and let the YT and any other fish "fight" with it's reflection, leave the mirror up until an hour after sunrise. I recently introduced a CB to a tank with a Powder blue, Tenniti and a very territorial scribbled angel, within two days there was peace.
 
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Yes, the YT is quite aggressive towards CBB. My YT killed my CBB one day, after about 6 months happily together in the tank.
 
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well the CB has been harassed all day and ends up cowering in the top corners of the tank, even when the mirror trick is used.

Going to leave them to sort out their issues for another day or two but what can I do if the Tang persists ?
 
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I wish i could give you could news but a month later my cbb is still in the same spot. Similar to your scenario
 
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well the CB has been harassed all day and ends up cowering in the top corners of the tank, even when the mirror trick is used.

Going to leave them to sort out their issues for another day or two but what can I do if the Tang persists ?
The CB will most likely die unless you do something. It won't eat, and the stress will kill it. You will need to chose one. CB or YT. It's actually stressful for all concerned.
 
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Sump the YT for a week, if you can
This could work, changing structure of rock work would also help. One must also consider that these options might fail because the tank is only a 1.2 metres in length.
 
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Catch the Yellow Tang with a fish trap - leased stressful method for all concerned and put him in the sump for 7 days or so (or until the CBB is eating well and has gotten his Mojo back) Mirror on the back of the trap drives Tangs mad.

Assuming you have a decent sized sump with a light in?

Yellow Tang is just defending his turf. When you put him back it will no longer be his turf it, will be the CBB turf or the next most dominant fish and the Yellow tang will be a lot more respectful on re-entering the tank.

Got a stroppy Powder Brown tang and a Convict Tang, had to do this just about every time I introduced another fish.

Works like a bomb, except that the Tangs now know know what a fish trap is and snigger at me when I put it in these days.
 
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will try the suggestions folks. The CB is eating though .... and the YT seems to be leaving him alone alot more - will see by the weekend
 
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ok, so putting the YT in the sump for 1 week did nothing ... they just going to have to live with each other and get used to it
 
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