Corys swim all over?

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Erin_Sauerborn

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May 31, 2020
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Does anyone else have corys (peppered) who swim all over the tank? I have 5 in my 20g and they’re swimming up and down the walls, back and forth through the middle of the tank, and just generally all over. They’re healthy and are also doing their thing along the bottom of the tank sifting through the sand looking for food, but I just have never had corys swim all over the tank like this. Maybe they’re just happy? Haha. Thanks!
 

FJB

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Jun 7, 2019
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They probably are just happy, which is a testament for good conditions you are providing. Mine (C. aeneus and C. leopardus) alternate between muzzling the bottom, and doing up and down trips as you described. And then, every so often, they may gulp air from the surface, just to resume their busy lives. I would worry more if they don't play around than otherwise.
 
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Rbishop

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Completely normal activity.
 
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NoodleCats

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They will do it even more after a layout change, water change, or if the weather is changing. Totally normal.

Mine especially like to swim up and down where the current of the filter outlet is
 
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