Spilo
Heros sp.
Spilo (Heros sp.) — Varies care, Peaceful, under Other. Minimum tank in the app: 125 US gal min; aim for 75–81°F and pH 6.5–7.5. The Spilo is ideal for aquarists seeking a dynamic mid-water swimmer that thrives in spacious, well-filtered environments.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
South America
- South America
Regional colours match the stocking calculator’s origin map.
Spilo Tank Setup
To accommodate the Spilo's needs, prioritize a tank layout that balances open swimming areas with strategic cover, such as driftwood and plants. Adequate water flow should be considered to mimic their natural environment, while a sandy or fine gravel substrate offers a comfortable bottom. Lighting should be moderate to low, fostering a sense of security without hindering visibility.
What Do Spilos Eat?
As omnivores, Spilos are versatile feeders; however, their feeding speed can vary, leading to competition if introduced with faster or more aggressive eaters. Offering high-quality pellets, frozen foods, and occasional plant matter ensures a balanced diet, which is crucial for maintaining their vibrancy and overall health.
Spilo Tank Mates
Spilos fare well with medium-sized, robust species that can hold their own against potential aggression, such as certain cichlids or larger tetras. However, pairing them with smaller or overly timid fish increases the risk of stress and harassment. Intraspecies interactions are generally peaceful unless territory is contested; providing multiple hiding spots can mitigate conflicts.
Are Spilos Good for Beginners?
Care demand varies with setup and individual fish; use the numbers above as your baseline. Aquarists often underestimate the Spilo's space requirements, leading to overstocking and heightened aggression. neglecting water quality and filtration can exacerbate stress, resulting in health issues.
Building a community? Run the full list through the stocking calculator before you add anything else.
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