You rightly noted - this topic is devoted to identification.
Phenotypically we found species.
We understand the possible hybridization and can not add anything on the subject.
Nutrition and habitat Sturiasoma and Farlovella for me are still a hot topic.
I am a reader of this resource for many years ...

These farlovella never knew what a river.

During your next visit to Iquitos - let me know.
I will make you a detailed map of directions to the lake - I can assure you - this lake is not part of the river in any of the seasons.
I guarantee you, you will be able to find a large population Farlovella in this lake.

Maybe a little later I will ...

No human can be sure of food recipes.


I started with this phrase is not accidental.

There is only one certainty Farlovella can live in stagnant water for a long time.
These reservoirs are not always temporary. Sometimes this individual lake - far from the river Itaya 10 kilometers or more ...

I was engaged in exports fish to Peru - the city of Iquitos. Stayed there for 4 years.
I lived in Bogota 2 years - visited many river of the Columbia and Venezuela.
I had a regular visits Brazil - Belem, Santarem, Manaus Tabatinga.
Every year I go to South America - see my Facebook page.

No human can be sure of food recipes.
I think that the nature of these fish eat a lot of benthos.
I've been watching these species in their natural habitat
Farlovela lives in waters where there is no water movement - she lives on the branches of the cane.
Sturiasoma lives in the river - on the roots ...

Sturisoma aureum 100%

http://www.planetcatfish.com/common/spe ... es_id=1167

It is this species of fish, I found on the beach Amazon River. 10 kilometers from the city of Iquitos.
This corresponds to a directory http://www.planetcatfish.com/common/species.php?task=&species_id=920
The local name of "loricaria antenna"
"loricaria Tiger" - the local name corresponds to a ...

add

Dear friends!
In the photo (uploaded my provider) - presumably Hypancistrus.
Location catch - presumably Rio Negro or Rio Uatuma.
Please help with identification.
Other photos The absence - I expect more information soon.