Can Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) Live Together?
Keeping Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) together is possible but requires caution due to mismatched flow preferences. Provide a spacious tank of at least 15000 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias)?
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 Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) are semi-aggressive species with an aggression score of 8/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.
Both Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) are highly aggressive, increasing the risk of violent confrontations.
Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) 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: Walking Catfish (Clarias) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Chao Phraya Giant Catfish (Paroon Shark) is a known jumper, so a tight-fitting lid is essential.
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 6.5 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 2–15 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) together, plan for an aquarium of at least 15000 litres with a minimum length of 600 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
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: Smooth Gravel (Sensitive Barbels), Sand (Sifters). Meeting these requirements will help both species thrive.
Chao Phraya Giant Catfish (Paroon Shark) prefers High (River/Stream) flow while Walking Catfish (Clarias) needs Low (Still Water) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.
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Frequently Asked Questions
Can Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 15000 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) need?
A minimum of 15000 litres (tank length at least 600 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 Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) 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 Chao Phraya Giant Catfish (Paroon Shark) or Walking Catfish (Clarias) aggressive?
Chao Phraya Giant Catfish (Paroon Shark) is semi-aggressive (8/10) and Walking Catfish (Clarias) is semi-aggressive (8/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Chao Phraya Giant Catfish (Paroon Shark) and Walking Catfish (Clarias) 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.
Does Walking Catfish (Clarias) being nocturnal affect compatibility?
Walking Catfish (Clarias) 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 Walking Catfish (Clarias) during evening hours.
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