Can Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) Live Together?
Yes, Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) 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 216 litres is recommended.
At a Glance
Behaviour & Temperament
Mexican Dwarf Crayfish (CPO) is a generally mild-mannered species (4/10), while Reedfish (Ropefish) is generally mild-mannered (3/10). This modest difference means Mexican Dwarf Crayfish (CPO) may occasionally assert dominance over Reedfish (Ropefish).
Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) 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.
Worth noting: Reedfish (Ropefish) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Reedfish (Ropefish) is a known jumper, so a tight-fitting lid is essential.
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 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 6–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.
Tank Setup
To house Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) together, plan for an aquarium of at least 216 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: Sand (Sifters), Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, Smooth Gravel (Sensitive Barbels), Plants - Densely covered. Meeting these requirements will help both species thrive.
Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.
Find the right tank equipment
Browse tanks, décor, and equipment suited for this setup.
Frequently Asked Questions
Can Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) live together?▾
Yes. Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) need?▾
A minimum of 216 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 Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) 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 Mexican Dwarf Crayfish (CPO) or Reedfish (Ropefish) aggressive?▾
Mexican Dwarf Crayfish (CPO) is generally mild-mannered (4/10) and Reedfish (Ropefish) is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Mexican Dwarf Crayfish (CPO) and Reedfish (Ropefish) need?▾
Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Will Mexican Dwarf Crayfish (CPO) nip Reedfish (Ropefish)'s fins?▾
Mexican Dwarf Crayfish (CPO) is a known fin nipper. If Reedfish (Ropefish) has long or flowing fins, there is a real risk of fin damage. Keeping Mexican Dwarf Crayfish (CPO) in a larger group can help redirect nipping behaviour toward conspecifics.
How do I manage Mexican Dwarf Crayfish (CPO)'s territorial behaviour?▾
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Mexican Dwarf Crayfish (CPO) 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 Reedfish (Ropefish) being nocturnal affect compatibility?▾
Reedfish (Ropefish) 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 Reedfish (Ropefish) during evening hours.
Related Comparisons
Mexican Dwarf Crayfish (CPO) & Assassin Snail
·
Mexican Dwarf Crayfish (CPO) & Fiddler Crab (Brackish)
·
Mexican Dwarf Crayfish (CPO) & Apple Snail
·
Mexican Dwarf Crayfish (CPO) & Bee Shrimp (Crystal Red / Black)
·
Mexican Dwarf Crayfish (CPO) & Bladder Snail (Pest Snail)
·
Mexican Dwarf Crayfish (CPO) & Cherry Shrimp
·
Reedfish (Ropefish) & Peter's Elephantnose Fish
·
Reedfish (Ropefish) & African Butterfly Fish
·
Reedfish (Ropefish) & African Lungfish
·
Reedfish (Ropefish) & Fire Eel
·
Reedfish (Ropefish) & Motoro Stingray
·
Reedfish (Ropefish) & Scat (Brackish)
·