Goldfish can actually withstand a range of temperatures: http://www.fishbase.org/Summary/SpeciesSummary.php?id=271 (the 0oC-41oC converts to 32oF-105oF for the non-metric users). But, they're adapted to cold water, which contains a higher percentage of dissolved oxygen, which is probably where they prefer to spend most of their time. The water with higher temperatures is most likely "edge" areas of large lakes or ponds, or the "ditches" mentioned in the above reference that warm up more. Goldfish probably enter these shallower waters in search of food or to digest their food (the warmer temperature speeds their metabolism for digestion) or to spawn. Then the fish return to deeper, cooler waters.
So the only way they have to control their homeostasis (at least in regards to temperature) is to move between areas of differing temperatures, depending on their needs.
What causes stress covers a wide variety of topics - from temperature extremes and prolonged exposure, their own wastes (ammonia, nitrite, nitrate from not cleaning their tanks, overfeeding, or too small of a space), other chemicals (high salt concentrations, copper, aluminum, pesticides, algicides, carbon dioxide, or too low of oxygen, etc.), medical/health (parasites, bacteria, fungi, viruses), physical (too rough of gravel when they search the bottoom for food), physiological (no places to hide/retreat, people tapping on the glass, staring at them, "bully" tankmates, overcrowding): http://www.aquariacentral.com/articles/stress.shtml
http://www.advancedaquarist.com/issues/sept2004/fish2.htm
http://www.fishchannel.com/fish-health/disease-prevention/stress-and-fish-disease.aspx
http://edis.ifas.ufl.edu/BODY_FA005
http://animal.discovery.com/guides/fish/freshaqua/stresshealth.html
http://www.ext.vt.edu/pubs/fisheries/420-252/420-252.html - for "wild" fish or those kept in ponds
2007-12-15 10:42:20
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answer #1
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answered by copperhead 7
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This website is absoulutely one of the most imformative I've been to for myself. You can ask them what you need to know and these very expierianced guys will tell you exactly what you need to know. Theres tons of archives and answers also, I'd recommend this site to all aquatics. Hope this helps, I have this one on my favorites. http://www.wetwebmedia.com
2007-12-16 23:02:52
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answer #2
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answered by walking on sunshine 3
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The one website which i rely on is www.aquahobby.com they have members who have decades of experience with fish and can answer almost any question.
2007-12-16 09:27:51
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answer #3
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answered by BUTCH 2
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here is a couple sites http://www.fishchannel.com/affc_portal.aspx and http://www.pet-net.net/fish/aquarium-chiller.html http://en.wikipedia.org/wiki/Aquarium also http://www.fish-tank-guide.com/ http://www.aquariumreview.net/ and the last site http://www.drsfostersmith.com/pic/article.cfm?acatid=415&aid=657 hope this sites help you
2007-12-15 18:33:55
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answer #4
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answered by Ronald T 2
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