How to tell Retroculus Xinguensis from Lapidifer at 2"?

  • We are currently upgrading MFK. thanks! -neo
I had a small group of Retroculus xinguensis back around '97, gave them away when they got to 5" or so to someone with a much larger aquarium. IMO they are one of those fish that doesn't benefit from overfull stomachs, in the wild they'd be feeding for most of the daylight hours so mean gut fullness at any particular time might not be that high. I fed them with regular, small meals and they seemed to do extremely well on this, and growth rates were very good (one individual arrived with Camallanus which appeared to knock it back a fair bit). They'd eat anything but struggled with big chunks, would just bounce around like a dog with a hot piece of food. Still wish I'd kept them, lovely fish. Ideal candidates for a Panta Rhei circulation pump. Prior to this, I have had a single unknown Retroculus that came in to a large local retailer as a sample before they'd even appeared in any English language hobby publications, it arrived absolutely hanging with white spot (Ich) so I talked them into letting me try to treat it, but it didn't make it past 24 hours. This may have been a septentrionalis, or could have been a "something else". Was deeper bodied than lapidifer or xinguensis.

here ya go crimson
 
Thank you sir. I must have missed that post. Thats some significant growth!

How is your frozen shrimp juice coming?

it working out great! but even better my xingu is taking pellets now. there .5 mm haha. so he would have to eat half the jar to be full so im going to get some 1mm and see if he takes those.
 
I have been throwing in a mix of 2mm and 1mm. The Retros seem to go after the 1mm for sure. The bigger eartheaters all fight over the 2mm, so it works out well. Glad you Xingu is taking pellets now, yippee!
 
If I went through my slides I could probably work out the exact timescale, but not got the free time to do so at the moment.
 
The xingu has been eating the 1 mm NLS pellets with ease now. He show spangles muh more often now aswell. The lap still doesnt take them but he will eventually. How is everyone elses retros doing?ImageUploadedByMonsterAquariaNetwork1361722089.922027.jpg


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The xingu has been eating the 1 mm NLS pellets with ease now. He show spangles muh more often now aswell. The lap still doesnt take them but he will eventually. How is everyone elses retros doing?
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All of my Retros are now eating NLS Grow and 1mm Xtreme. ;-)
 
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