Problems with my new tank/tetras - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 18 Old 01-06-2012, 09:02 PM Thread Starter
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Question Problems with my new tank/tetras

Ok, so I just set up my new 36 gallon tank, this is my first tank. I set everything up and ran the tank for a week before getting any fish. I bought 3 red long fin minor tetras on Monday. They adjusted fine for the first two days. Then started a problem. One is big, one small, and medium sized one that I believe is a female. The big one seems to be a bully, and now the middle one is not eating. It has not eaten in two days and now it hides alone behind the plants near the heater swimming in one spot. Is this fish stressed, sick, or bullied? Any help would be great!
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post #2 of 18 Old 01-06-2012, 09:06 PM
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did you cycle your tank ?
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post #3 of 18 Old 01-06-2012, 09:56 PM Thread Starter
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I had one bacterial blossom, as soon as I added the fish, it cleared up.
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post #4 of 18 Old 01-06-2012, 10:22 PM
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Serpae Tetra are aggressive fish, there will always be this type of behavior with them. They will do better in a larger group, at least six, but if you decide to keep them it will limit what you can keep in your tank as almost anything will be targeted for fin nipping and chasing. When a species name is shaded you can click on it and it will take you to the profile which explains all about the species.


Cycling refers to the development of the different bacterial colonies invloved in nitrification, which usually takes several weeks or months.


See: http://www.tropicalfishkeeping.com/freshwater-articles/bacteria-freshwater-aquarium-74891/

Last edited by Quantum; 01-06-2012 at 10:24 PM.
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post #5 of 18 Old 01-07-2012, 06:20 PM
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I would go even further on the Serpae Tetra. No fewer than 8 in the group, and many recommend 10 or more; and these on their own in a 30g. If you intend any other fish in the 36g, I would get rid of the Serpae as they do limit options. All this is in the profile.

And, welcome to Tropical Fish Keeping forum.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #6 of 18 Old 01-07-2012, 08:35 PM Thread Starter
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Settling down.

So I went to the pet store, who originally told me these fish were calm and good for a community tank. I bought another tetra which makes four as well as 4 Glofish. There is one bully out of the 4 tetra, none are bothering the glofish, which are alot smaller than the tetra. I am going to give it a week or so, if the bullying continues I may remove the one bully tetra.
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post #7 of 18 Old 01-08-2012, 12:09 PM
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Quote:
Originally Posted by Mgreen View Post
So I went to the pet store, who originally told me these fish were calm and good for a community tank. I bought another tetra which makes four as well as 4 Glofish. There is one bully out of the 4 tetra, none are bothering the glofish, which are alot smaller than the tetra. I am going to give it a week or so, if the bullying continues I may remove the one bully tetra.
Did you read the profile of the Serpae Tetra? You did ask us for help, and two of us have referred you to the profile for information. I think it is pretty clear.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #8 of 18 Old 01-11-2012, 05:56 PM Thread Starter
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update

I have read up on these guys now, I don't know what to do, added another which makes four and still bullying and they aren't schooling together. They do not bother the glofish though.
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post #9 of 18 Old 01-11-2012, 06:03 PM Thread Starter
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New Aquarium, What should I add?

So I started a new aquarium about three weeks ago. It is a 36 gallon tank. After running the tank for a week I added the first fish, 4 red minor long fin tetra, waited another week and added 4 glofish (zebra dainos). The red minors are not getting along with eachother and are not schooling. Usually stay is different parts of the tank. I am waiting a week or so before adding more fish, I was looking for some suggestions. Thanks
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post #10 of 18 Old 01-11-2012, 07:05 PM
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If I was in your situation, I would take the Serpeas back to the store. I would replace them with Lemon Tetras. They are a much more peaceful fish, and can withstand the cycling process. They are shoaling, so buy a group, at least six, preferably more. They are cool looking to.

I get along better with my fish, than most people.
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