What kind of Geos do I have?

  • We are currently upgrading MFK. thanks! -neo
you have Geophagus sp. 'Tapajo'. and very nice ones at that. If you can get more try and bump your group up to 6. They are a lot of fun as a group and will spawn for you often.
 
Are they orange heads, seems like a silly question seeing their head but some of the others I've seen look like they're on fire. I would like to get a couple more in there, waiting till my house is done for the upgraded tank. Currently 2 Geos, 6 discus, hystrix and a 7" black aro in a 120...don't want to over do it quite yet. Thanks for the quick reply
 
Are they orange heads, seems like a silly question seeing their head but some of the others I've seen look like they're on fire. I would like to get a couple more in there, waiting till my house is done for the upgraded tank. Currently 2 Geos, 6 discus, hystrix and a 7" black aro in a 120...don't want to over do it quite yet. Thanks for the quick reply

There is a long term debate over the name red head versus orange head. Many (myself included) would argue there are two different species that separates the tapajos but currently they are lumped together under the same fish. I think that is where you will hear the term thrown around loosely for both variants and vice versa. That's the fun with common names..
 
Are they orange heads, seems like a silly question seeing their head but some of the others I've seen look like they're on fire. I would like to get a couple more in there, waiting till my house is done for the upgraded tank. Currently 2 Geos, 6 discus, hystrix and a 7" black aro in a 120...don't want to over do it quite yet. Thanks for the quick reply

The orange on the head comes and goes with mood, breeding status, etc. Increasing the group size may help. Nice looking fish you have, by the way.
 
Being common names, not scientific names, red head or orange head are essentially interchangeable in common usage these days. There's some documentation out there of an early mistaken collection location in addition to Tapajos (Araguaia, a different river) and some attempted to distinguish one location as red head and the other as orange head. There is also some documentation of another population in a Tapajos tributary and, again, I've seen attempts to say one is orange head and one is read head. I've also seen some say that 'orange head' is the original and correct name and 'red head' is incorrect. Then again, others are calling the same fish "orange cap".

But until this fish is officially described and logged in taxonomic lists, imo red head vs. orange head debates are essentially hobbyists or others of varying expertise splitting hairs over two popular, common names, neither of which is official or scientific yet. In any case, in common usage the names are being used interchangeably and most in the hobby are calling the same fish red head or orange head according to their particular personal preference or whim.

As far as the red/orange color, ime it gets better with age until the fish is 2-3 years old, so if you have young fish, be patient. And, as mentioned above, color also varies a bit with mood, preparing to spawn, etc. I also find really clean water makes a difference-- these fish like a good water change ime-- and there's always the food debates over which foods give you better color.
 
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