Onespot Squeaker
Synodontis notata
A daytime-active catfish with a bold personality to match its bold spot.

About
The Onespot Squeaker (Synodontis notata) is a catfish from the Congo River basin, found across a broad range that includes Pool Malebo and the Kasai and Ubangi drainages, as well as the Chiloango River. Unlike most of its genus, which tend to skulk around after lights-out, this species is notably active during the day, which makes it a much more visible and engaging tank resident than the average Synodontis. Its common name refers to the bold single dark spot on its flank, though hobbyists should know that several regional forms exist. Some individuals carry three, six, or even twelve spots, while others have none at all. This variation causes real confusion in the trade, and fish sold as S. notata are sometimes actually S. nummifer or S. congica. True to the Synodontis group, it is an omnivore and a solid choice for a beginner willing to plan around its adult size and temperament. The catch is that personality: this fish becomes increasingly territorial as it matures, and it is especially confrontational toward other Synodontis species. Keeping more than one in a tank is asking for trouble unless the setup is genuinely spacious. Good tankmates include robust West African cichlids, Alestiid tetras, Mormyrids, and similarly sized robust fish. Nothing small enough to become a meal.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Onespot Squeaker
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Onespot Squeaker get?
- The Onespot Squeaker reaches about 6–10.5" as an adult.
- What water parameters does the Onespot Squeaker need?
- The Onespot Squeaker does best with a temperature of 72–82°F, a pH of 6–7.5, hardness around 4–18 dGH.
- Is the Onespot Squeaker aggressive?
- The Onespot Squeaker is aggressive and is best kept alone or with robust tankmates that can hold their own.
- What does the Onespot Squeaker eat?
- The Onespot Squeaker is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
- How long does the Onespot Squeaker live?
- With good care, the Onespot Squeaker typically lives 8-12 years.