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Old 09-05-2014, 06:34 PM   #1
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Firefish Goby ATTACKING MATE??

So I bought an Orange Firefish goby last Thursday, and for the few days following they seemed happy and at home. Then, about two days ago, the male (I think...) began chasing and nipping its mate. And today, I noticed the female (still guessing) was missing the end of her dorsal fin! Completely torn off! Now, the immidiate suspect is the mate, but maybe it wasn't...?
Stock:
2 Firefish
2 Clownfish (True and False Percula)
4 Green Chromis
3 Hermit crabs
3 Snails
A patch of GSP
Size: 55 Gallon
LR: 50 lbs
LS: 80 lbs
Salinity: 1.022
Ammonia: 0
Nitrite: 0
Nitrate: 1.0
I'm going on a weekend trip, so quick responses would be appreciated. Thanks!
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Old 09-05-2014, 06:43 PM   #2
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These guys are supposed to be quite peaceful but if you have 2 males you could definitely get aggression. What makes you believe you have a male and female? If I'm not mistaken they tend to do better in odd numbers as well.


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Old 09-05-2014, 06:48 PM   #3
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When I picked them up, the LFS owner showed them to me, and of the four she had (the four firefish) these two were always near one another. Also, the supposed female is smaller and sleeker than the supposed male. And I believe odd numbers is for freshwater schooling fish, not saltwater pairs. Could be wrong though.
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Old 09-05-2014, 06:50 PM   #4
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Firefish Goby ATTACKING MATE??

Hmm guess I was thinking of another fish. Long day :/. But my first guess would be two males. Other than that it could just be stress from moving and will sort itself out.

Edit: sorry thought you meant Thursday as in yesterday. That's weird that the behavior just started after a week.

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Old 09-05-2014, 06:52 PM   #5
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Another weird part: At night, the two will sleep in a corner of the tank, one on top of the other. It's like, "Oh, I'll attack you during the day, but guard you at night".
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Old 09-05-2014, 07:17 PM   #6
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This is a shot in the dark but maybe he was trying to get her to mate with him?


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Old 09-06-2014, 07:30 PM   #7
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Its very common for firefish to be aggressive to each other.
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Old 09-10-2014, 07:57 PM   #8
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So, update on the two. The male is completely dominating the female. He's now started tearing up her back fins. Should I get a small 5-10 gallon tank and move the goby in there by herself? Or leave it be? Or try and return it to my LFS?
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Old 09-10-2014, 07:59 PM   #9
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Quote:
Originally Posted by Deadna View Post
So, update on the two. The male is completely dominating the female. He's now started tearing up her back fins. Should I get a small 5-10 gallon tank and move the goby in there by herself? Or leave it be? Or try and return it to my LFS?
Personally, I would try to return it.
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Old 09-11-2014, 07:52 PM   #10
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So the LFS says it'll take back the aggressive one in exchange for store credit. I was thinking of getting a pair of purple firefish goby instead. Would that work?
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