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Old 10-06-2008, 04:54 PM   #1 (permalink)
fishrookie
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Default WHO is doing this?

I moved recently (about one month ago) and have had quite a few fish die including a pleco, tetra, two blue gouramis, and I think that's it for now. I thought I was having a water issue; Everything tested out okay but I couldn't figure out what was causing all of the deaths! Now I see the last Blue Gourami has a "bite" out of his fin. Could someone be on the hunt when I am not around? Could the lack of natural light be an issue? WHAT AM I DOING WRONG?!
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Old 10-06-2008, 05:20 PM   #2 (permalink)
TAL
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I lost a tetra once and its fins were missing....

We have a common suspect in our tanks.

A rainbow shark.
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Old 10-06-2008, 06:18 PM   #3 (permalink)
fishrookie
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That was my thought too. The Rainbow seemed aggressive so I pulled him out but the deaths still continue...
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Old 10-06-2008, 06:26 PM   #4 (permalink)
TAL
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Quote:
Originally Posted by fishrookie View Post
That was my thought too. The Rainbow seemed aggressive so I pulled him out but the deaths still continue...

Mine is pretty easy going most of the time.

Spends alot of time swimming away from my Betta that is obsessed with following him around

BUT

I have caught him at night, in the dim light of a 1950's kitchen light fixture from several feet away. Red fins blurry from quick action, chasing EVERYONE who is anywhere near him.
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Check out my HiQ Zero Water Exchange System Blog at : http://www.myfishtank.net/forum/equi...st-thread.html
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Old 10-06-2008, 09:28 PM   #5 (permalink)
brian1973
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what about the ghost knife... never had one but I thought they were rather aggressive fish?
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Old 10-06-2008, 10:01 PM   #6 (permalink)
DesignsOnYou
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Good call TAL. Ghost knives can be aggressive. Also, how big is your tank? Anything smaller than a 55 gallon is probably overstocked with your list. I don't know a lot about it, but that might lead to more aggression and fights over territories between fish that might be more peaceful if they had more room. You may know this too, but your clown loaches will eventually outgrow even a 55. They do grow slowly, and I have 3 in mine with plans to either upgrade or give them away in a couple years, but it's still something to be aware of.
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Old 10-06-2008, 10:30 PM   #7 (permalink)
Anabantid Guy
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Quote:
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Good call TAL. Ghost knives can be aggressive.
Ghost Knife fish are predetors too. I read on Wikipedia that they will nip at fins and eat anything that fits in their mouths. As TAL said they are also aggressive sometimes. Yes I have fishtanks.
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Old 10-06-2008, 10:37 PM   #8 (permalink)
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make sure the frog isn't actually of the clawed variety.
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Old 10-06-2008, 10:45 PM   #9 (permalink)
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Your assumption is correct. They aren't what I would call aggressive but will defend their selected cave. And yeah they do hunt at night and may try to take a bite out of a fish from time to time. That is predation not aggression.

Once the BGK is full grown you won't really be able to keep any of the smaller community fish in with him. They really do get big.
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Old 10-07-2008, 07:50 AM   #10 (permalink)
misterking
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Have you noticed any nippy behaviour by your serpae tetras? I used to have HUGE problems with my serpaes who'd nip just about everyone's fins, sometimes stressing them to death, and I've never kept them again. But looking around the internet it does depend on the general mentality of the group because just as many people haven't had any problems whatsoever.

BGK is a good suspect and already mentioned so I won't go into any more detail on that. It could at a stretch be your angel, a friend of mine had a lone angel which terrorised its tankmates, killing a dwarf gourami and literally shaking a male betta to death. However I don't think it'd just kill a tetra it'd probably eat it.

Take punkrockfish's advice - check it's not of the clawed variety because they are predatory. Apart from that though, I'm not sure. Maybe the move just really stressed your fish? That can result in shredded-looking fins.
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