Bristlenose catfish question...

Dec 14, 2009
421
0
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England
#1
hello all,

well in my 25g i have a bristlenose catfish, and in my 10g i have a smaller one the smaller one has smaller bristles as expected but somedays they dissapear and the next they will be back ... anyone know why, i was just curious, he is healthy so i doubt its anything bad :)