Gourami attacks - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 6 Old 04-05-2013, 12:35 AM Thread Starter
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Gourami attacks

Hi All,

At first, it was getting along but recently my Gourami (gold) is getting real big and bossy in the tank. It even killed one of the other Blue Gourami which I had in my tank for a few months and bought them together.

So last time, I notice it went on a rampage and killed some other tank mates (I bought some snake fish, now its just the corpse). This is horrible, I dont know what I should do. The size could be an issue as he is the biggest of them all. Any ideas?


55 gallon tank
barbs, tetras, red swordtail, platy, black molly...

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post #2 of 6 Old 04-05-2013, 05:33 PM
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I'm not sure...if you think you're fish is being aggressive, I found this site. Maybe it would help; IDK.
Aquarium Fish Aggression
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post #3 of 6 Old 04-05-2013, 05:42 PM Thread Starter
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Thanks for the link and the help on ID'ing the Molly. My Gourami is now on its own little jar, I think I will need a filter to keep it alive.
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post #4 of 6 Old 04-05-2013, 05:45 PM
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Okay, great! :)
I hope your Gourami does well. Let me know how it goes if you remember.
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post #5 of 6 Old 04-06-2013, 02:14 PM
That gourami will need a bigger tank than a jar. maybe return it to the store if you can't house it properly alone.
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post #6 of 6 Old 04-06-2013, 03:01 PM
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Yes, please return it or give it to another aquarist. Fish need a proper home, with space and a natural environment.

As for the initial question, this is common with this species. IF you read our profile [click Blue Gourami, this is the same species as the Gold as it explains therein], it mentions that this fish can be very territorial. Usually it is the males fighting each other, but frequently females get a bit nasty too. You can't do anything about this, it is the inherent nature of the species.

Having said that, it is true that improper environment can create worse aggression, as the linked article mentions.


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 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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