Freshwater Sole
Trinectes maculatus
Freshwater Sole (Trinectes maculatus) — Varies care, Peaceful, under Other. Minimum tank in the app: 55 US gal min; aim for 73–82°F and pH 6.5–7.5. The Freshwater Sole is a fascinating addition for experienced aquarists seeking a unique mid-water dweller.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Africa
- Africa
Regional colours match the stocking calculator’s origin map.
Freshwater Sole Tank Setup
Create a balanced environment with enough open swimming areas complemented by strategically placed decorations and plants to provide cover. A sandy substrate mimics their natural habitat, while moderate water flow supports their activity level. Maintain consistent lighting to prevent stress and encourage natural behaviors.
What Do Freshwater Soles Eat?
Being omnivores, they adapt well to varied diets, but feeding should be spaced to prevent competition. They may be slower eaters, so ensure that food reaches all individuals, and consider offering options that enhance coloration and health without overwhelming their digestive systems.
Freshwater Sole Tank Mates
Ideal companions include species of similar size and moderate aggression to minimize stress, such as certain tetras or barbs. Avoid overly timid species that may become targets for bullying, and be cautious with larger fish that could outcompete them for resources. Intraspecies, they are generally non-territorial but can show dominance over weaker individuals.
Are Freshwater Soles Good for Beginners?
Care demand varies with setup and individual fish; use the numbers above as your baseline. New aquarists often underestimate the importance of tank volume and filtration, leading to water quality issues that stress the fish. Inadequate space can also trigger aggressive behaviors, while neglecting to establish a varied environment may result in unfulfilled behavioral needs, leading to increased anxiety.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




