Can Sterba's Corydoras and Striped Raphael Catfish Live Together?
Keeping Sterba's Corydoras and Striped Raphael Catfish together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 240 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Behaviour & Temperament
Sterba's Corydoras is a peaceful species (1/10), while Striped Raphael Catfish is peaceful (2/10). This modest difference means Striped Raphael Catfish may occasionally assert dominance over Sterba's Corydoras.
Sterba's Corydoras and Striped Raphael Catfish both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.
Worth noting: Striped Raphael Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.
To improve the chances of a peaceful coexistence in this community tank: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.
Water Parameters
The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.
Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 2–15 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Sterba's Corydoras and Striped Raphael Catfish together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Sand (Sifters), Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.
Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.
Frequently Asked Questions
Can Sterba's Corydoras and Striped Raphael Catfish live together?▾
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 240 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Sterba's Corydoras and Striped Raphael Catfish need?▾
A minimum of 240 litres (tank length at least 120 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.
What water temperature is best for Sterba's Corydoras and Striped Raphael Catfish together?▾
Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Sterba's Corydoras or Striped Raphael Catfish aggressive?▾
Sterba's Corydoras is peaceful (1/10) and Striped Raphael Catfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Sterba's Corydoras and Striped Raphael Catfish need?▾
Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Does Striped Raphael Catfish being nocturnal affect compatibility?▾
Striped Raphael Catfish is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Striped Raphael Catfish during evening hours.
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