Just what are they nibbling at?
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Just what are they nibbling at?

This is a discussion on Just what are they nibbling at? within the Livebearers forums, part of the Freshwater and Tropical Fish category; --> Ok so I know it's normal for fish to suck/nibble on rock an ornaments but I'm wondering just what it is they're doing? There's ...

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Just what are they nibbling at?
Old 01-29-2014, 03:13 PM   #1
 
Just what are they nibbling at?

Ok so I know it's normal for fish to suck/nibble on rock an ornaments but I'm wondering just what it is they're doing? There's obviously nothing there the human eye can see, so bacteria? Another reason I think this is because they seem to do a lot of this at the heater. Any idea?
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Old 01-29-2014, 06:37 PM   #2
 
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awfuchs and biofilm.
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Old 01-30-2014, 07:10 PM   #3
 
I concur with the above. They also pick at items looking for essential minerals. Before you ask, carnivors get minerals from what they eat.
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