ID on Geophagus Surinamensis

  • We are currently upgrading MFK. thanks! -neo
Geophagus altifrons. They lack facial markings, have a spotted caudal fin, and have a lateral spot that is 4 scales or less. Good looking fish and they should get more colorful as they get bigger!

Agreed 100%. Refreshing to see a person post why they reached an ID instead of just a species name. Right on Armand!
 
How do yours behave? I just got mine and have four in a 15 gallon / 57 litre quarantine tank. They fight all the time, don't seem to do each other any harm though.

One cool thing I noticed is that when they're over a dark patch of substrate (I've got some sand I threw in for them and some dark gravel that was already there), the vertical lines down their bodies, which are usually barely perceptible, will get really dark.

How do mine behave? Well thats alot to cover...well I have a pair breeding monthly or so, she is holding frys right now, I have not had any survivors yet unfortunatly. Constant scraps for territory, lip locking ocassionaly, raming each other...they do alot, too much to cover unless you want to read an entire essay ;) In my experience the only time the dark vertical lines, and darken in general, is when they are stressed or frightened. Mine are VERY shy and are scared very easily. The tank is in my kitchen (nowhere else for them), and when I had guests over for a family dinner the Geos were stressed to the point where they looked deathly...

I hand feed two blocks of bloodworms once a week after/during water changes. Disappears very quickly...I have 3 more of these growing up in a grow out tank, as well as a Hecklii, so hopefully the addition of these will spread out the agression better.


Yeah! Totally awesome, doesnt leave me thinking "well...why is that?" I'm just wondering, is there any article or guide on identifying Geophagus?
 
Today one of them was hiding in an overturned artificial plant I'd put in, which has leaves with dark horizontal bands, and the fish had dark horizontal bands (rather than the usual vertical ones) to mimic it. They disappeared as soon as it swam away from the plant. Kind of impressive.
 
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