Geophagus Iporangensis vs. Brasiliensis?

[Nemesis]

How do you distinguish the difference between the two when they are juveniles?

 

[RD.]

Damn near impossible until they reach approx 4". Iporangensis tend to be more elongated, and stay that way as they mature, while the Brasiliensis start to get a much more blocky build to them once they get in the 3.5-5" range. (especially the males)

 

[keith reynolds]

How do you distinguish the difference between the two when they are juveniles?

with mine the brasiliesis have red lips and Iporangensis have blueish lips

 

[bbortko]

with mine the brasiliesis have red lips and Iporangensis have blueish lips

My iporangensis have red lips. Iporangensis seem to have more red on their tail and fins.

 

[luvinbluegills]

Wow, I thought I was familiar with the geos but I'd never heard of the iporangensis. After doing a search on them, I now wonder how many small geos I've seen in the shop that I thought were brasiliensis but were actually those guys!

 

[darippa]

There's also a Red form of Geo Brasiliensis. You may want to study more on this strain as it may be the one you own. There may be more. I'm no expert.

 

[Andrewtfw]

Brasiliansis is a complex of fish, not a specific fish. Iporangensis refers to a Brasiliansis type that was collected in a village from which it gets its name.

 

[peathenster]

Brasiliansis is a complex of fish, not a specific fish. Iporangensis refers to a Brasiliansis type that was collected in a village from which it gets its name.

Interesting thought.

Geophagus brasiliensis, as a species, was described in 1824 by Quoy & Gaimard.