hatchetfish behaviour - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 4 Old 11-04-2012, 05:11 PM Thread Starter
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hatchetfish behaviour

I just bought 3 hatchets from my LFS. Thats all they had i plan on getting 3-5 more. My question is, and sorry for jacking the thread Olympia, the one seems to just chill on its own most of the time in a darker part of the aquarium while the other two play and dart around in the Current created by my filter. I read that they do pair off but i figured they would stay away form the current. Does anyone else have hatchets that like to play in the current?
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post #2 of 4 Old 11-04-2012, 05:48 PM
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I moved this post out of the older thread and started a new thread. While the topic is similar, the issue was not, so best on its own.

To your question, first, what species do you have? If you need help identifying, the most common ones are in our profiles. The species is important, since those in Carnegiella occur in very quiet waters and need this (out of filter currents) to be settled. The larger species are a bit different, though in my experience they too like to get into quiet waters. Rarely do I see any of these fish remaining close to the stronger flow near the filter return, and in my 4 and 5-foot tanks they certainly could if they chose too.

Fish naturally expect food to be carried by on the current, so they may face into it from time to time. They also need time to settle into a new environment, and may spend more time in the flow initially.

Byron.

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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post #3 of 4 Old 11-04-2012, 06:10 PM Thread Starter
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They are the larger silver hachet fish.
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post #4 of 4 Old 11-04-2012, 07:04 PM
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Quote:
Originally Posted by Jester10 View Post
They are the larger silver hachet fish.
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Probably just settling in. As long as there is sufficient surface area with no water movement from the filter, or very minimal, they should be fine. They need to be able to get out of strong currents when they want to, otherwise they will be weakened by continually fighting current.

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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