Worm-line Headstander (Synaptolaemus cingulatus) Breeding Guide

Breeding Synaptolaemus cingulatus: a rare Orinoco-Amazon anostomid headstander; FishBase notes distinct pairs breed in densely grown weedy places, but no hobby protocol exists.

Overview

Synaptolaemus cingulatus is a rarely seen anostomid headstander of the Orinoco and Amazon river basins, with the type locality on the upper Orinoco River in Venezuela (Wikipedia); FishBase records its range across the upper Orinoco, Casiquiare and upper Xingu basin and a maximum length of about 8.4 cm. Taxonomically, S. cingulatus is now considered a synonym of S. latofasciatus, the genus once again being treated as monospecific (Wikipedia).

Sexing

No reliable external sexing characters for this species were present in the opened sources.

Breeding Setup

FishBase records that distinct pairs breed in densely grown, weedy places, indicating a planted environment is used for spawning. No detailed home-aquarium breeding protocol for this rare species is documented in the opened sources.

Spawning Behavior & Trigger

Per FishBase, the species forms distinct breeding pairs that spawn among dense weedy vegetation. Beyond this pairing-and-weed-spawning note, no specific egg or fry details were available.

Common Challenges

The species is rare in the hobby and only a general FishBase note on pairs breeding in weedy places is documented; without a detailed published protocol and given its specialist requirements, captive breeding remains effectively undocumented.