Can Brown Hoplo Catfish and Murray River Rainbowfish Live Together?
Yes, Brown Hoplo Catfish and Murray River Rainbowfish 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 200 litres is recommended.
At a Glance
Can your tank handle Brown Hoplo Catfish and Murray River Rainbowfish?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
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Behaviour & Temperament
Both Brown Hoplo Catfish and Murray River Rainbowfish are peaceful species with an aggression score of 2/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.
Brown Hoplo Catfish and Murray River Rainbowfish both frequent the Middle (Open Water) 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: Brown Hoplo Catfish is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 20°C and 26°C. Aim for the midpoint of this range (around 23.0°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.
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Tank Setup
To house Brown Hoplo Catfish and Murray River Rainbowfish together, plan for an aquarium of at least 200 litres with a minimum length of 120 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
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), Smooth Gravel (Sensitive Barbels). 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.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Brown Hoplo Catfish and Murray River Rainbowfish.
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
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Frequently Asked Questions
Can Brown Hoplo Catfish and Murray River Rainbowfish live together?
Yes. Brown Hoplo Catfish and Murray River Rainbowfish are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Brown Hoplo Catfish and Murray River Rainbowfish need?
A minimum of 200 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 Brown Hoplo Catfish and Murray River Rainbowfish together?
Keep the aquarium between 20°C and 26°C. A target of around 23.0°C sits comfortably within both species' preferred ranges.
Are Brown Hoplo Catfish or Murray River Rainbowfish aggressive?
Brown Hoplo Catfish is peaceful (2/10) and Murray River Rainbowfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Brown Hoplo Catfish and Murray River Rainbowfish 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.
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