Can Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis Live Together?
Keeping Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis together is possible but requires caution, though some care is needed. 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 Domino Synodontis?
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
Chao Phraya Giant Catfish (Paroon Shark) is a semi-aggressive species (8/10), while Domino Synodontis is moderately assertive (6/10). This modest difference means Chao Phraya Giant Catfish (Paroon Shark) may occasionally assert dominance over Domino Synodontis.
Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis 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: Chao Phraya Giant Catfish (Paroon Shark) is a known jumper, so a tight-fitting lid is essential.
To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.
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 6.5 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 4–15 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 Domino Synodontis 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), Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.
Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.
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Frequently Asked Questions
Can Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis 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 Domino Synodontis 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 Domino Synodontis 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 Chao Phraya Giant Catfish (Paroon Shark) or Domino Synodontis aggressive?
Chao Phraya Giant Catfish (Paroon Shark) is semi-aggressive (8/10) and Domino Synodontis is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Chao Phraya Giant Catfish (Paroon Shark) and Domino Synodontis 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.
How do I manage Domino Synodontis's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Domino Synodontis 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.
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