Found in shallow (1-2 m deep), well-oxygenated, clear water of the surge zone; bottom composed of small stones varying from 10-40 cm in diameter; feeds on biocover which is scraped from rocks; small invertebrates (crustaceans, mites, insects, insect larvae) are eaten as well; biparental mouthbrooder .
Dorsal spines (total): 23 - 25; Dorsal soft rays (total): 3 - 5; Anal spines: 3; Anal soft rays: 7 - 8. Diagnosis: Eretmodus marksmithi is characterized by a subterminal mouth and 7-8 light bars extending the full depth of the body from dorsal fin base to ventral side, the last crossing the caudal peduncle . A few light blue dots may be present, mainly on the head . : short and / or deep; Cross section: compressed.
Behavioural data for Eretmodus Marksmithi is currently being reviewed.
Diet information for Eretmodus Marksmithi is currently being compiled.
Reproduction data for Eretmodus Marksmithi is currently being compiled.
Freshwater; pelagic; depth range 0 - 5 m . Tropical endemic to Lake Tanganyika, occurs in the northern two thirds to three-fourths of the lake (Ref.
biocover which is scraped from rocks; small invertebrates (crustaceans, mites, insects, insect larva
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