Synodontis robbianus

Classification

Mochokidae

Distribution

This species is found only in Nigeria.

Habitat

Naturally occurs in the Lower Niger and Cross rivers.

Maximum Standard Length

5.2″ (13cm)

Aquarium SizeTop ↑

36″ x 12″ x 12″ (90cm x 30cm x 30cm) – 80 litres.

Maintenance

A dimly lit aquarium with a soft substrate and rocks, pieces of driftwood and twisted roots arranged to form hiding places suits this species. Floating vegetation is also recommended in order to diffuse the light entering the tank. Other planting is beneficial but not essential.

Water Conditions

Temperature: 22-25°C (71 -77°F)

pH: 6.0-7.5

Hardness: 5-20°H

Diet

Synodontis are omnivorous and are most unfussy in terms of feeding. Frozen, live and dried foods are all accepted. It also relishes vegetable matter in the form of shelled peas, cucumber etc., which it will rasp at with the teeth in its lower jaw.

Behaviour and CompatibilityTop ↑

Should not be kept with any fish so small as to be considered food. Ideal tankmates include Alestiid tetras, robust cichlids (particularly West African species), Mormyrids, Knifefish, Gouramis and larger rasboras and barbs. It tends to become slightly territorial as it matures, especially towards other Synos. However any aggression is usually far less pronounced than in some other members of the genus and it can be maintained in a small group in a suitably sized aquarium provided each fish is given a refuge to call home.

Sexual Dimorphism

The female is plumper than the male when adult. It is a little too small to be effectively sexed using the genital papillae technique, though it may be possible.

Reproduction

Not recorded in aquaria. In nature S. robbianus breeds like other riverine Synodontis in areas of seasonal flooding that are rich in micro-organisms. They are egg scatterers and exhibit no parental care.

NotesTop ↑

S. robbianus is often confused with the similar but larger S. nigrita. They can be distinguished by the brownish base colour of this species as opposed to the greyer patterning exhibited by S. nigrita. It is also similar to several other Syno species, especially when juvenile.

A hardy, adaptable species ideal for the newcomer to Synodontis but not often seen for sale.