Synodontis polli Breeding Guide

Breeding notes for Poll's Synodontis (Synodontis polli): a Lake Tanganyika endemic egg-scatterer that pairs to spawn; captive breeding is essentially unrecorded.

Overview

Synodontis polli, Poll's Synodontis, is endemic to Lake Tanganyika (and possibly Lake Mweru, unconfirmed), per Seriously Fish. Note that, although the knowledge-base record labels it a cave-spawner, the consulted source describes it instead as an egg scatterer; this guide follows the source. Breeding has not been recorded in captivity, so reliable spawning detail is limited.

Sexing

Seriously Fish notes sexing is challenging in this smaller Synodontis; the main distinction is that mature females are rounder in the belly than males.

Conditioning

Seriously Fish reports the species readily takes frozen, live and dried foods, but unusually for the genus most individuals refuse vegetable matter. A varied protein-rich diet supports condition; the Tanganyikan habitat means hard, alkaline water.

Breeding Setup

Reflecting its rift-lake origin, Seriously Fish gives water of 24-28 °C, pH 7.5-8.5 and hardness 15-35 °H. Provide a sandy substrate, rocky cover and hiding places. As territorial disputes can occur during establishment, give groups enough space and structure.

Spawning Behavior & Trigger

Seriously Fish describes S. polli as an egg scatterer that shows distinct pairing during spawning, with limited wild data available. Because captive breeding has not been recorded, no reliable aquarium trigger can be stated, and claims of cuckoo brood-parasitism for this species are not supported by the consulted source.

Egg & Fry Care

Because breeding has not been recorded in captivity, detailed egg and fry care for S. polli is not documented in the consulted sources, and is therefore omitted rather than estimated.

Common Challenges

The principal challenges are the absence of recorded captive spawning, the difficulty of sexing this small species, and territorial behaviour during group establishment. Stable hard, alkaline Tanganyikan conditions are essential.