PlanetCatfish.com

Picked some BN's up some time ago now and wanted to see if I could get a positive ID on them. The male in the picture is around 4" TL.

Thanks,
Chuck

Could this be Ancistrus sp. Rio Ucayali?

I've had Ancistrus Rio Ucayali in the past and they look a little different than them to me. I bought them as L59's and think they actually might be them... they look correct to me anyways. I hope to confirm this when/if I get some fry from them.

Thanks,
Chuck

Looks to be Ancistrus hoplogenys

I think there are too many and too small spots on the dorsal fin to be hoplogenys. I was thinking Rio Ucayali too. But if you've had them before, then you know how they differ from these.

Cheers, Eric

Thank you for the reply. I separated a pair to a different tank in the hopes that they might breed.... so far the male I picked hasn't even set "fin" in a cave. I may have to enlist a different male. I think the fry may shed some light on what they are or aren't...... I hope anyways! I think the pictures of A. hoplogenys are of mid sized and smaller fish..... the one I have pictured is around 4" TL so not a mid or small specimen. That is why I think fry may clear up what they are for sure...

Chuck

my bets would be on hoplogenys. As most of the white seams, they have a convex caudal. Eric's Rio Ucayali for example have a concave caudal - as can be seen in his video here: viewtopic.php?f=13&t=44471

Maybe I see it wrong, but your fish seem to have a convex caudal, which would put them into white seam territory, if you ask me.
Merry Christmas

Thanks Jobro, they where fairly large when I got them and I have only had them for 11 months now..... but I think they had a very slight seem on the dorsal when I got them if I remember correctly. If I get them breeding I will make sure to post pictures of the fry.

Thanks,
Chuck

Spots are small because the fish is in its adult stage.