Scientific Evidence of Benefits of Shoaling Fish kept in groups - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 7 Old 07-09-2010, 01:48 PM Thread Starter
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Scientific Evidence of Benefits of Shoaling Fish kept in groups

We've been advocating maintaining shoaling fish (tetras, angelfish, barbs, rasbora, corydoras, etc) in groups of 6 or more for some time; apparently this has never been scientifically studied--until now. Here's a link to an article from Practical Fishkeeping about a study that confirmed that larger groups of these fish have less stress and (in some cases) significantly less aggression.

http://www.practicalfishkeeping.co.u...m_content=html

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 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 #2 of 7 Old 07-09-2010, 03:02 PM
this is how they live in the wild. http://www.youtube.com/watch?v=cWIVCdLOImw

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #3 of 7 Old 07-09-2010, 05:40 PM
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I read this article as well.I agree with one reader who commented that they should have used larger groups in larger tanks as well.Overall a good piece that proves that having groups does serve a purpose and is more in keeping with natural behavior.

Your's truly,
Lee
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post #4 of 7 Old 07-10-2010, 02:49 AM
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+one, Have always thought that large groups are much more appealing, and they do appear to appreciate being in large groups as well.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #5 of 7 Old 07-10-2010, 05:22 AM
yup coz although they are hand bred they still have their natural inborn instinct.

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #6 of 7 Old 07-10-2010, 07:31 AM
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Neat article, although I wonder at the accuracy they could have attained by doing larger group studies. 10 litres is not much, and 5 angels seems small if you're trying to demonstrate"shoaling'" behavior.I'd be curious if they got different results in a larger tank with larger groups.

"Good schools do not make one educated. The ability and desire to learn makes one educated."

"Knowledge does not make a person smart. Utilizing that knowledge makes them smart."
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post #7 of 7 Old 07-13-2010, 05:37 AM
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Agreed, especially since, in the case of things like tiger barbs, you often find that even six or eight fish isn't enough to really alleviate the problems associated with having too few fish in the shoal. I'd like to see them use 55g tanks and groups of 1, 2, 3, 5, 8, 12, 20 and 30 barbs (though I guess their metrics would be pretty useless with just one fish).

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