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Old 09-18-2009, 06:01 PM   #1 (permalink)
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Default Why are my fish doing this after i added CO2?

heres a picture to explain





They all went under my reactor? why is that?
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Old 09-21-2009, 08:56 AM   #2 (permalink)
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Default Re: Why are my fish doing this after i added CO2?

Most likely it's instinct. Most fish have a natural instinct to swim into currents (there's a fancy scientific name for this that escapes me). It looks like they're just caught in an instinctual attempt to "swim up stream" which in this case is up your reactor. I've never seen a fish this instinctually driven though. Maybe it's a combination of instinct and thinking it's a safe/shaded spot?
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