One-spot synodontis
Synodontis notatus
Also known as One-spot squeaker, Domino synodontis, Spotback catfish
Care at a glance
- Temperature
- 72–81°F (22–27°C)
- pH
- 6.5–7.5
- Adult size
- 9.8 in (25 cm)
- Minimum tank
- 53 gal (200 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Rare
- Origin
- Native to the Congo River basin in Central Africa.
- Family
- Mochokidae
Overview
The one-spot is an attractive, mostly peaceful squeaker that grows to a fair size, so it suits a larger community with robust tankmates rather than a nano tank. It does well in a small group and forages actively once settled. Feed sinking pellets, frozen foods, and vegetable matter. Give it sand, wood, and caves in a tank of at least 200 liters.
In the wild
The one-spot synodontis lives in the Congo basin, foraging over sand and among submerged wood in warm, moderately flowing water. It is active mainly at night and hides in cover during the day. Provide a soft sandy floor to protect its barbels, driftwood and rock caves, and open swimming space, at 22 to 27 degrees C.
Good to know
This squeaker reaches about 25 cm and is easily known by the single round black spot on each silvery flank, though some individuals carry two, three, or more. It has the family's bony head shield, sharp locking spines, and long barbels. There is no home breeding record for it.
Did you know
The name says one spot, but the number of flank spots varies a lot between individuals, so a tank of them can show anything from a single dot to a scatter of them.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping One-spot synodontis?
Track water tests, reminders and stocking fit.
Related species

Decorated squeaker
Synodontis decorus11.8 in (30 cm)53 gal (200 L)72–81°F (22–27°C)
Giant upside-down catfish
Synodontis batensoda11.8 in (30 cm)79 gal (300 L)72–81°F (22–27°C)
Polka dot syno
Synodontis angelicus11.8 in (30 cm)55 gal (210 L)75–82°F (24–28°C)
Bigeye squeaker
Synodontis alberti7.9 in (20 cm)40 gal (150 L)72–79°F (22–26°C)
Featherfin squeaker
Synodontis eupterus7.9 in (20 cm)45 gal (170 L)72–81°F (22–27°C)
Ocellated squeaker
Synodontis ocellifer7.9 in (20 cm)53 gal (200 L)73–81°F (23–27°C)
