Skip to content
Menu

Species profile

Onespot Squeaker

Synodontis notatus

Common names: Onespot Squeaker, Domino Synodontis

Recognized speciesCatfish

Adult size

Up to 27.5 cm

Up to 27.5 cm

Countries of origin

  • See all stock from Democratic Republic of the Congo
  • See all stock from Republic of the Congo

Good fit for your tank?

Good fit for

  • A keeper who has researched this fish and can match its needs

Think carefully if

  • You keep shrimp you want to protect

A pale catfish with one or a few big, dark spots on its side, also known as the Domino Synodontis. Keep alone or in a small group in 108 litres or more.

Appearance and Identification

A pale catfish with one or a few big, dark spots on its side, also known as the Domino Synodontis. It reaches about 27 cm and comes in several regional forms, and it is often imported as a pretty juvenile.

Check the scientific name when buying, as common names vary between sellers and countries.

Sexes can be hard to tell apart, although females are often rounder.

Tank Requirements

Suggested filter
About 430–540 litres an hour
Suggested heater
About 100–150 W for this tank
Minimum tank volume
108 litres
Minimum tank length
120 cm
Minimum group size
1
Recommended group size
1
Activity level
Low
Flow preference
Low to moderate
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Moderate

Provide caves, wood and shade, because many catfish are active mostly at night.

Behaviour and Tankmates

Usually most active at dusk and after dark, and it hides during the day.

Social needs vary, so see the notes for this species.

Can defend a favourite hiding place.

Check adult size before choosing tankmates, because a catfish may eat anything that fits in its mouth at night. It is likely to eat shrimp.

Check tankmates for this species

Water Parameters

Temperature
22–25 °C
pH
6.5–7.5
GH
8–18
Stability importance
Important

Keep the pH steady, because this fish is sensitive to swings. Keep the temperature steady.

Parameter caveat
Keep up regular water changes, and acclimatise new fish slowly.

Feeding

Diet types
Omnivore
Feeding frequency
Daily
Preferred foods
  • Sinking pellets or wafersFeed after lights-out if faster fish take everything first.
  • Frozen bloodworm and brine shrimpOffer several times a week.
  • Blanched vegetablesCourgette or cucumber add variety for fish that graze.

Feed sinking foods, ideally after lights-out, so that it gets its share.

Feed small amounts, and remove anything left after a few minutes.

Breeding

Breeding type
Egg Scatterer
Breeding difficulty
Moderate
Parental care
None
Baby foods
  • InfusoriaNeeded for the first days, because most fry are very small.
  • Newly hatched brine shrimpIntroduce as soon as the fry can take it.

An egg scatterer with no parental care. Adults eat eggs and fry, so use a separate tank with fine plants, moss or mesh on the bottom, and remove the adults after spawning. The fry need very small foods at first.

Habitat and Origin

Geographic origin
Africa, Democratic Republic of the Congo, Republic of the Congo
Natural habitat
River
Aquarium contexts
Planted Aquarium
Audience level
Advanced

Classification

Profile type
Recognized species
Genus
Synodontis
Species group
Catfish, Fish, Other Catfish
Previous scientific names
Synondontis notatus, Name also used in the hobby.

Have you kept this species?

You can write a note about what worked for you, or send a photograph. We check everything before it appears here.

Share a note or photo

JPG, PNG, or WebP, up to 5 MB.