Can Leopoldi Stingray (Black Diamond) and Tire Track Eel Live Together?

Possible with Caution

Keeping Leopoldi Stingray (Black Diamond) and Tire Track Eel together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 1135 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Leopoldi Stingray (Black Diamond)

Potamotrygon leopoldi

Tire Track Eel

Mastacembelus armatus

🐟Family Group
Leopoldi Stingray (Black Diamond)
Oddballs
Tire Track Eel
Oddballs
Temperament
Leopoldi Stingray (Black Diamond)
Semi-Aggressive (5/10)
Tire Track Eel
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Leopoldi Stingray (Black Diamond)
26–30°C
Tire Track Eel
22–28°C
pH Range
✓ Compatible
Leopoldi Stingray (Black Diamond)
6–7.5
Tire Track Eel
6.5–7.5
Hardness (dGH)
✓ Compatible
Leopoldi Stingray (Black Diamond)
3–10
Tire Track Eel
5–15
Water Type
✓ Compatible
Leopoldi Stingray (Black Diamond)
Freshwater Only
Tire Track Eel
Freshwater Only
Flow Preference
✓ Compatible
Leopoldi Stingray (Black Diamond)
Moderate
Tire Track Eel
Moderate
Min Tank Volume
Combined: 1135 L
Leopoldi Stingray (Black Diamond)
1135 L
Tire Track Eel
680 L
Swimming Level
Shared: 1 zone
Leopoldi Stingray (Black Diamond)
Bottom
Tire Track Eel
Bottom
🏷️Behavior Tags
Leopoldi Stingray (Black Diamond)
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Hyperactive / Fast Swimmer
Tire Track Eel
Piscivore (Eats small/nano fish)Shrimp EaterDigger (Disturbs Substrate)Jumper (Lid Required)NocturnalAggressive to same species/look-alikes
Stocking calculator

Can your tank handle Leopoldi Stingray (Black Diamond) and Tire Track Eel?

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.

Leopoldi Stingray (Black Diamond)
Tire Track Eel
Test both in my tank

Behaviour & Temperament

Leopoldi Stingray (Black Diamond) is a moderately assertive species (5/10), while Tire Track Eel is moderately assertive (6/10). This modest difference means Tire Track Eel may occasionally assert dominance over Leopoldi Stingray (Black Diamond).

Leopoldi Stingray (Black Diamond) and Tire Track Eel 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: Tire Track Eel is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Tire Track Eel is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 26°C and 28°C. Aim for the midpoint of this range (around 27.0°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 5–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Leopoldi Stingray (Black Diamond) and Tire Track Eel together, plan for an aquarium of at least 1135 litres with a minimum length of 240 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: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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.

Frequently Asked Questions

Can Leopoldi Stingray (Black Diamond) and Tire Track Eel live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1135 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Leopoldi Stingray (Black Diamond) and Tire Track Eel need?

A minimum of 1135 litres (tank length at least 240 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 Leopoldi Stingray (Black Diamond) and Tire Track Eel together?

Keep the aquarium between 26°C and 28°C. A target of around 27.0°C sits comfortably within both species' preferred ranges.

Are Leopoldi Stingray (Black Diamond) or Tire Track Eel aggressive?

Leopoldi Stingray (Black Diamond) is moderately assertive (5/10) and Tire Track Eel is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Leopoldi Stingray (Black Diamond) and Tire Track Eel 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 Tire Track Eel being nocturnal affect compatibility?

Tire Track Eel 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 Tire Track Eel during evening hours.


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