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A. nijsseni or panduro

Posted: Fri Aug 02, 2013 7:36 pm
by Lisachromis
Got a pair of panduro (I believe) that recently laid eggs. I remembered that these two species are quite similar. Doing a little research online has led me to believe that there are several beliefs on how to tell them apart. Some even say they won't crossbreed. So, what are the differences and will they crossbreed? Not sure I can get pics of mine cause of the tank they are in.

Re: A. nijsseni or panduro

Posted: Sat Aug 03, 2013 2:24 pm
by a.d.wood
Looking at the males, one of the biggest difference is the dorsal fin. With A. nijsseni the upper edge of the dorsal is flat, with A. panduro the front part of the fin will show extensions on the individual rays.

Andrew

Re: A. nijsseni or panduro

Posted: Mon Aug 05, 2013 11:03 am
by Mike Wise
Besides the serration of the dorsal fin, the size and shape of the caudal spot is diagnostic: A. nijssen, vertically oval and does not extend into the caudal fin; A. panduro, triangular with point extending well into caudal fin. Females can be separated by the size & shape of the flank patch and cheek stripe/patch: A. nijsseni, large vertically oval patch on flanks that does not extend to the ventral edge & a dark patch that covers most of the operculum; A. panduro: large vertically oval patch or wide vertical bar that extends to the ventral edge of the body & a much narrower cheek stripe on the operculum. Yes, the 2 species will cross if forced, but you will probably notice that the offspring are few, weak, deformed - and ugly.

Re: A. nijsseni or panduro

Posted: Tue Aug 06, 2013 12:24 pm
by Lisachromis
The eggs disappeared, so I guess she didn't like me doing tank maintenance. If I'd known, I'd have held off, but didn't. I'll see if I can get pics.

Re: A. nijsseni or panduro

Posted: Tue Sep 03, 2013 6:06 pm
by Lisachromis
Finally got a couple of half decent shots of the pair.

Male
apistomale.jpg
Female
apistofemale.jpg

Re: A. nijsseni or panduro

Posted: Mon Sep 09, 2013 3:05 pm
by Mike Wise
Definitely, A. panduro.

Re: A. nijsseni or panduro

Posted: Mon Sep 09, 2013 4:00 pm
by Lisachromis
I suspected that. Thanks for the confirmation Mike.