how many cory should i add? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 13 Old 01-06-2010, 06:47 PM Thread Starter
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Exclamation how many cory should i add?

Angel079 suggusted that i add some cory to the bottom of my 15 gallon tank, which already has 3 tiger barbs. there is one slight problem, Angel079 did not mention how many cory i should add. anybody who knows, please respond! -NoaDon12-
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post #2 of 13 Old 01-06-2010, 07:02 PM
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get 4-6. And the cool thing about corys is that most races will school with each other so you can actully have diffrent species in there and they should all school together.
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post #3 of 13 Old 01-06-2010, 09:02 PM
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I'd strongly suggest a group of 6.
Get something like Peppered or Panda Cory's; do NOT get bronze Cory they will get quite some larger and you don't want that for your tank.

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post #4 of 13 Old 01-06-2010, 10:13 PM
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Originally Posted by NoaDon12 View Post
Angel079 suggusted that i add some cory to the bottom of my 15 gallon tank, which already has 3 tiger barbs. there is one slight problem, Angel079 did not mention how many cory i should add. anybody who knows, please respond! -NoaDon12-
You can ask more than one question in your thread.

IMO a 15 is too small for corys. There just isn't enough floor space for them to behave propperly.

As I said in one of your other threads, you ought to considder takng the tigers back and getting cherry barbs instead. Tigers are not suitable for such a small tank.

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post #5 of 13 Old 01-07-2010, 01:03 AM
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What are the dimensions of the tank? If it's a standard, 24" long 15g then I would say that tiger barbs would be alright in it, but a 20" long 15H is getting pretty small for fish that like a lot of swimming room.

Now, I've personally never kept tiger barbs with cories, but rumor has it that tigers absolutely love nipping the dorsal fins of cory cats. You might want to wait for the input of someone who has actually done this before you take my word on it, though. If you do decide to stick with the barbs and cories combo, you'll want at least six barbs and at least four cories, although six would be better. For a small tank like yours, you'd probably want to introduce them in small batches to avoid overloading your beneficial bacteria.

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post #6 of 13 Old 01-07-2010, 04:19 PM Thread Starter
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OMG!!!!! I just went to go check on my fish, and the biggest tiger barb nipped off some fin on one of the smaller ones! Should i do something about this, or just accept it as natural behaivor? -NoaDon12- 5:19pm
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post #7 of 13 Old 01-07-2010, 06:02 PM
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tiger barbs can be very aggressive and territorial. the best thing that i can suggest that you do is add lots of decor and plants to their environment. this should help cut down on some of the aggression with each other. but keep in mind that you are still going to have lots of fin nipping in your tank as long as you house these "tigers"... good luck...

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post #8 of 13 Old 01-08-2010, 01:03 AM
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You need a bigger school of tiger barbs, which I would worry about before bothering with the cories. Six or so tigers would really help reduce (or at least spread out) the aggression between them.

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post #9 of 13 Old 01-08-2010, 03:10 PM
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I agree they need to be more in number, but I also think this tank is too small. Pasfur had a good post on this very issue the other day, here it is:

Many have had success keeping tiger barbs relatively peacefully by having a large group (9 or more) in a suitably large tank (I would agree with Pasfur's suggestion here). Fish with this sort of temperament can experience behaviour problems when they are stressed by either too few companions to interact properly, and/or too small a water volume. I know there is a biological reason for this, but the outward issue we can recongnize is the confined space. It is better to avoid stressing the fish.


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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 you’re going to take it under your wing then you’re 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 #10 of 13 Old 01-08-2010, 03:27 PM
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Pasfur is a lot more experienced than I am so I would weigh his opinion much heavier than my own, but I'll throw in my two cents on the issue for what it's worth. I have kept a school of tiger barbs successfully in a 20g tank. The behavior Pasfur described was evident (although I never let it get to the point of any of the fish actually dying) until I had six members in the school. At that point, I had three males and three females. One male was sort of the runt of the group and essentially started acting like a female (even subdued his coloration to look more like a female) which prevent further harassment. There remaining two males did get into spats from time to time but never to the point of torn fins. The fish lived this way for quite a long time, until eventually the surly jewel cichlid they lived with figured out they were edible.

But again, I could have just lucked out with this particular group dynamic.

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