11-05-2009, 04:13 PM
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Originally Posted by vaygirl
The big difference I notice is dorsal fin size but I can't find a definite answer on how many rays a Brochis Splendens has on his dorsal. I've been trying to count their dorsal fin rays but they're such FAST little guys.
Finally, I managed to stay still and so did they and I'm counting 8. And they wink at me like Corys are supposed to do. I'm so confused. I guess it doesn't matter terribly. They're so close looking it's hard to tell. The big difference I notice is dorsal fin size but I can't find a definite answer on how many rays a Brochis Splendens has. In most of the pics I see, the dorsal touches the caudal but on my guys there's a large gap between them. So confusing when they look so similar.
From your description and photo, I believe you have Corydoras aeneus. All the Corydoras and Aspidoras species have seven rays in the dorsal fin, while Brochis have more than 10 rays. Brochis splendens, the emerald brochis, has fewer rays than the other two Brochis species but still has 10 to 12 rays.