O.macrospilus?
Posted: 31 Oct 2004, 09:09
Is this a Otocinclus macrospilus? 
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Posted: 31 Oct 2004, 10:03
No, it's O. hoppei.
Posted: 31 Oct 2004, 10:33
Thanks, but ,... 
what are the main differences between macrospilus and hoppei?
what are the main differences between macrospilus and hoppei?
Posted: 31 Oct 2004, 10:41
The shape of the markings on the base of the caudal peduncle. See this post.