CheckMyFishTank

Cuckoo Synodontis care

Synodontis multipunctatus · Freshwater · Intermediate level care

Cuckoo Synodontis, painted illustration

A spotted Lake Tanganyika catfish that works well with African cichlids.

Smallest tank55 gallons
Adult size6 inches
Temperature75 to 80°F
pH7.5 to 8.5
GroupA group of 4 or more
TemperamentSemi aggressive
SwimsBottom of the tank
Lives10 to 15 years
Watch for: It eats tiny fish and fry, and prefers hard alkaline water.

Feeding

Once a day. One or two sinking pellets or wafers per fish, eaten within a few minutes. Sinking pellets, frozen foods, vegetable matter.

Eats fish small enough to fit in its mouth.

Good tank mates

Fish that pass every check with Cuckoo Synodontis in a 110 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.

Do not mix with

  • Neon Tetra: Cuckoo Synodontis grows big enough to eat Neon Tetra.
  • Cardinal Tetra: Cuckoo Synodontis grows big enough to eat Cardinal Tetra.
  • Green Neon Tetra: Cuckoo Synodontis grows big enough to eat Green Neon Tetra.
  • Black Neon Tetra: Cuckoo Synodontis grows big enough to eat Black Neon Tetra.
  • Ember Tetra: Cuckoo Synodontis grows big enough to eat Ember Tetra.
  • Lemon Tetra: Cuckoo Synodontis grows big enough to eat Lemon Tetra.
  • Glowlight Tetra: Cuckoo Synodontis grows big enough to eat Glowlight Tetra.
  • Serpae Tetra: Cuckoo Synodontis grows big enough to eat Serpae Tetra.

Questions

What size tank does a Cuckoo Synodontis need?

At least 55 gallons for a group of 4. Adults grow to about 6 inches, so plan for the adult size, not the size at the store.

What temperature does a Cuckoo Synodontis like?

75 to 80 degrees Fahrenheit, with a pH of about 7.5 to 8.5. A steady temperature matters more than hitting one exact number.

How many Cuckoo Synodontis should I keep together?

Keep 4 or more. They feel safe in a group and show better color and behavior.

What do Cuckoo Synodontis eat?

Sinking pellets, frozen foods, vegetable matter. Feed once a day: one or two sinking pellets or wafers per fish, eaten within a few minutes.

Sources

Checked against these sources on 2026-11-10. When sources disagree we use the safer number.