Name: Geophagus brasiliensis
Origin: SE Brazil to Uruguay
I work at a pet shop and we carry two species of earth eaters (Juraparis and Pearls). I have also kept Pearl Earth Eaters for close to four years now. They are one of the most striking, personable, and inquisitive fish that I have kept, they make mounds with the gravel they stick into their mouth. They are quite amazing fish, and as they mature get great colors to them. Great fish especially for Earth Eater Biotopes.
I have a male at 15 cm in my 400 litre. He can be a bit of a bully towards other large fish, which he sees as a threat to 'his' tank. He is very friendly and will follow me around the room. He eats just about anything and everything!
I'm not entirely sure, but I think the picture of the fish you are calling a Brasiliensis is really a Geophagus taeniopareius. Taeniopareius are part of the Brasilensoid family, but one of the only Geophagus that have a line going through it's eye. A Brasilensis doesn't have the line. This fish is from the Rio Orinoco in Venezuela. They possess beautiful greenish blue speckals on top of an olive green base color, with red spots on the fins as well. Some have very briight red eyes as well. Check out the Cichlid Room companion. This fish is very different fish from a Brasilensis. Pet stores are making the same error.
Regarding Rick's speculation, the owner of the fish above (Afonso) lives in Rio de Janeiro (Brazil), where G. brasiliensis is native and extremely common. Because of that and the fact that Rio is about 3000 km away from Venezuela, it's very likely that the fish in question is indeed G. brasiliensis.
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