Can Blind Cave Tetra and Featherfin Squeaker Live Together?
Yes, Blind Cave Tetra and Featherfin Squeaker are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 240 litres is recommended.
At a Glance
Behaviour & Temperament
Blind Cave Tetra is a generally mild-mannered species (4/10), while Featherfin Squeaker is moderately assertive (5/10). This modest difference means Featherfin Squeaker may occasionally assert dominance over Blind Cave Tetra.
Blind Cave Tetra and Featherfin Squeaker both frequent the Middle (Open Water) and 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.
Worth noting: Featherfin Squeaker is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.
Water Parameters
The safe temperature window for both species falls between 22°C and 25°C. Aim for the midpoint of this range (around 23.5°C) for optimal comfort.
Both fish can tolerate a pH between 6.5 and 8. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 8–20 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Blind Cave Tetra and Featherfin Squeaker 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.
Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.
Specific environmental needs for this combination include: Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Sand (Sifters). 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.
Find the right tank equipment
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Frequently Asked Questions
Can Blind Cave Tetra and Featherfin Squeaker live together?▾
Yes. Blind Cave Tetra and Featherfin Squeaker are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Blind Cave Tetra and Featherfin Squeaker 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 Blind Cave Tetra and Featherfin Squeaker together?▾
Keep the aquarium between 22°C and 25°C. A target of around 23.5°C sits comfortably within both species' preferred ranges.
Are Blind Cave Tetra or Featherfin Squeaker aggressive?▾
Blind Cave Tetra is generally mild-mannered (4/10) and Featherfin Squeaker is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Blind Cave Tetra and Featherfin Squeaker need?▾
Both species overlap in the 6.5–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Will Blind Cave Tetra nip Featherfin Squeaker's fins?▾
Blind Cave Tetra is a known fin nipper. If Featherfin Squeaker has long or flowing fins, there is a real risk of fin damage. Keeping Blind Cave Tetra in a larger group can help redirect nipping behaviour toward conspecifics.
How do I manage Featherfin Squeaker's territorial behaviour?▾
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Featherfin Squeaker space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
Does Featherfin Squeaker being nocturnal affect compatibility?▾
Featherfin Squeaker 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 Featherfin Squeaker during evening hours.
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