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This is a discussion on cory within the Catfish forums, part of the Freshwater and Tropical Fish category; --> my albino corydora lost its bristles about 5 months ago has anyone ever seen this before? i jst got 2 more corys yesterday and ...

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Old 05-16-2010, 12:07 AM   #1
 
Question cory

my albino corydora lost its bristles about 5 months ago has anyone ever seen this before?
i jst got 2 more corys yesterday and fed them baby brine shrimp there goin crazy over it and so r the other fishl.
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Old 05-16-2010, 11:47 PM   #2
 
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I have heard of this and it's usually a result of too sharp of substrate since cories spend their days rooting around and into the substrate looking for food. What type of substrate do you have in your tank??
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Old 05-17-2010, 03:32 AM   #3
 
rocks but it was in a different tank before it was rocks also
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Old 05-17-2010, 09:19 PM   #4
 
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"Rocks" to me suggest sharp edges so that is probably the cause in your case. Smooth rocks have no impact, be it sand, gravel or pebbles, provided they are smooth; it is the rough edges that cause the trouble, not the gravel.

A second cause is biological. Some authors cite high nitrate levels, since these usually indicate deteriorating water conditions. I suspect it is the state of the water, which involves mainly the "health" of the water (ammonia/nitrite/nitrate and non-fluctuation conditions) plus to some extent the parameters (pH and hardness).

Lastly I have had some corys lose their barbels while all the others in the same tank for years do not. This suggests it may also be a "fish" thing, by which I do not necessarily mean a particular species per say but some species may have a more susceptible reaction to something than others. I have maintained numerous species of Corydoras for 20 years and I find C. sterbai particularly susceptible.

And, they can live for years (normal life spans) without barbels, and no, they do not grow back.

Byron.
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Old 05-18-2010, 03:26 AM   #5
 
they r kinda smooth but they came out of the some sort of rocks when i bought them.
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Old 05-18-2010, 09:36 AM   #6
 
Barbels

Hi. The most common cause of barbel loss is bacteriological infection. They will generally only regenerate if the Cory is very young. - Frank
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