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I have heard that neons are peacable fish! NOT so!
My neon is beating up my cardinal tetras and my danios. Why?
I bought him neons to school with - he killed them. I bought him cardinal tetras to school with - he goes after them with a vengence. I have a 10 gallon with him, 3 cardinal tetras and one last danio. HELP!
I even put him in a breeder tank for a while thinking he would lose some aggresion...no. I rearranged the plants to sedate him... no! He is such a jerk I want to flush him. lol.
Any tips are appreciated!

2007-01-12 14:47:07 · 6 answers · asked by jessica s 2 in Pets Fish

We started with seven neons... The first two dies from natural causes and little by little he knocked off the rest. I went online and found that neons will school with cardinals and that cardinals were bigger and heartier so I bought five cardinals... two got knocked off. Stupidly I bought three danios to replace them and hopefully break up what was happening in my tank. Mind you all this is over the course of a year... not all at once. I HATE THAT NEON!

2007-01-13 01:25:36 · update #1

6 answers

I am having the same problem only it's not just one neon. I have 6 neons in there and they are always fighting eachother. The one neon, attacks all the rest of the neons, while the second strongest attacks the weaker. It is like a free for all of bullying. I can't figure it out. They are in a 20 gallon, so it's not a matter of space. They won't even school together. Bunch of punks if you ask me.

2007-01-15 16:47:02 · answer #1 · answered by . .DaveM123 2 · 0 0

Sounds like you are trying to put too many fish in too small of an area. In a 10 gallon tank you need to pick 1 species of small tetra or danio and get 6 of that species. What probably happened is that neon was stressed because there were not enough neons and/or there were too many other fish so he became aggressive to protect himself.

A 10 gallon tank if you decide to put a schooling fish in it, can only support 1 species of small schooling tetra. So pick 1 of the species you have, take the others back to the store, and get a centerpiece fish like a betta or dwarf gourami, (if you are very experienced you can do a ram) then get a snail, a few shrimp, or a frog

2007-01-12 23:36:18 · answer #2 · answered by fish guy 5 · 1 0

First, check to make sure the water parameters are suitable for him. Secondly you tank is to small for more then one school. If they are not in a school and not in a suitable enviroment, parameters, temp, size, environment (substrate, plants, etc) they will act oddly. ALSO, since few people other then us serious hobbyist care at all about the genetics and breeding of fish MANY fish are so inbred or not culled as fry that you get weirdos.

Tetras won't school with other tetras and they don't have the same parameters as danios. So as far as that goes, there is your problem. Was he in a school in the first place? If no, that is a problem. How many neons did you bring him to school with. It has to me minimun 6 and kept in multiples of 3, if the number was wrong, there is the problem also.

Neons when properly bred and kept are VERY peaceful fish. Sorry to hear you're having a hard time.

2007-01-13 01:29:32 · answer #3 · answered by Noota Oolah 6 · 0 0

Ha! hilarious. In my experience neons are skittish and fragile. The combined efforts of my danio and catfish killed three of them. The problem with your neon may be that he is not in a school of neons. Give him some buddies or take him back to the store before he kills your other fish.

2007-01-12 23:30:25 · answer #4 · answered by Anonymous · 0 0

try a bigger tank with tougher fish. or at least bigger school.

2007-01-13 00:45:17 · answer #5 · answered by Jason 2 · 0 0

He's got rabies... Feed him to the sharks!

2007-01-12 22:54:48 · answer #6 · answered by Thermos 2 · 0 1

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