Fish yawning or something else ?

seng felix

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My senegal bichir yawn at a certain of time I don't know if this is normal ? Secondly, why do they yawn ???
 

chrt396

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Some fish appear to yawn..but they are actually flushing their gills. There are also times that a fish will expand his mouth which looks like yawning... to show dominance!
However....It's more fun to think that they are just a little sleepy!
 

chrt396

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Absolutely! Make sure you say good night to them,,,just in case!
 

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