Occurs in shallow rapids of rivers with bottom composed of small to medium-sized flat rocks (up to 50 cm diameter), over a substrate of coarse sand and pebbles. Observed to hide under rocks during daytime and forage on epilithon on the upper surface of the rocks at night. Diatoms (83% of total volume), as well as sponge fragments and spicules associated with fine sediments and sand grains made up the stomach contents of two specimens. Mainly herbivorous, corroborated by its long intestine reaching nearly 11 times the standard length .
Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 5. Diagnosed from all species of Peckoltia by having dark thin longitudinal stripes in interradial membranes parallel to dorsal-fin rays, that fragment into small dots in larger specimens Differs from its congeners by having the following combination of characters: orange band on the distal margin of caudal- and dorsal-fin; dark brown dots on the entire body; postanal length (28.4-32.4% of SL); and head depth 48.2-60.4% of HL .: elongated.
Behavioural data for aquarium is currently being reviewed.
Diet information for aquarium is currently being compiled.
Reproduction data for aquarium is currently being compiled.
Freshwater; demersal. Tropical South America: Rio Xingu basin.
"Ancistomus Feldbergae is an edible species."
Detailed nutritional data for aquarium is currently being compiled from USDA FoodData Central.
Mercury data for aquarium has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
No observations yet — be the first to log one!
View all observations for aquarium ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.