Can Black Skirt Tetra and Striped Raphael Catfish Live Together?
Keeping Black Skirt Tetra 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
Black Skirt Tetra is a generally mild-mannered species (4/10), while Striped Raphael Catfish is peaceful (2/10). This modest difference means Black Skirt Tetra may occasionally assert dominance over Striped Raphael Catfish.
In terms of spatial distribution, Black Skirt Tetra prefers the Middle (Open Water) zone, whereas Striped Raphael Catfish occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.
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. Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.
Water Parameters
The safe temperature window for both species falls between 24°C and 26°C. Aim for the midpoint of this range (around 25.0°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 3–15 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Black Skirt Tetra 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: Plants - Densely covered, 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 Black Skirt Tetra 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 Black Skirt Tetra 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 Black Skirt Tetra and Striped Raphael Catfish together?▾
Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Black Skirt Tetra or Striped Raphael Catfish aggressive?▾
Black Skirt Tetra is generally mild-mannered (4/10) and Striped Raphael Catfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Black Skirt Tetra 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.
Will Black Skirt Tetra nip Striped Raphael Catfish's fins?▾
Black Skirt Tetra is a known fin nipper. If Striped Raphael Catfish has long or flowing fins, there is a real risk of fin damage. Keeping Black Skirt Tetra in a larger group can help redirect nipping behaviour toward conspecifics.
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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