Can Antennae Stingray and Lesser Spiny Eel Live Together?

Possible with Caution

Keeping Antennae Stingray and Lesser Spiny Eel together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 2500 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Antennae Stingray

Plesiotrygon iwamae

Lesser Spiny Eel

Macrognathus aculeatus

🐟Family Group
Antennae Stingray
Oddballs
Lesser Spiny Eel
Oddballs
Temperament
Antennae Stingray
Semi-Aggressive (5/10)
Lesser Spiny Eel
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Antennae Stingray
24–28°C
Lesser Spiny Eel
23–28°C
pH Range
✓ Compatible
Antennae Stingray
6–7
Lesser Spiny Eel
6.5–8
Hardness (dGH)
✓ Compatible
Antennae Stingray
1–10
Lesser Spiny Eel
5–15
Water Type
✓ Compatible
Antennae Stingray
Freshwater Only
Lesser Spiny Eel
Brackish Tolerant
Flow Preference
✓ Compatible
Antennae Stingray
Moderate
Lesser Spiny Eel
Moderate
Min Tank Volume
Combined: 2500 L
Antennae Stingray
2500 L
Lesser Spiny Eel
200 L
Swimming Level
Shared: 1 zone
Antennae Stingray
Bottom
Lesser Spiny Eel
Bottom
🏷️Behavior Tags
Antennae Stingray
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)
Lesser Spiny Eel
NocturnalDigger (Disturbs Substrate)Jumper (Lid Required)Shy / Slow Moving (Easily Stressed)Piscivore (Eats small/nano fish)Shrimp EaterFry Predator
Stocking calculator

Can your tank handle Antennae Stingray and Lesser Spiny 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.

Antennae Stingray
Lesser Spiny Eel
Test both in my tank

Behaviour & Temperament

Antennae Stingray is a moderately assertive species (5/10), while Lesser Spiny Eel is generally mild-mannered (4/10). This modest difference means Antennae Stingray may occasionally assert dominance over Lesser Spiny Eel.

Antennae Stingray and Lesser Spiny 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: Lesser Spiny Eel is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Lesser Spiny Eel 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. 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 Antennae Stingray and Lesser Spiny Eel together, plan for an aquarium of at least 2500 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), Plants - Densely covered. 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 Antennae Stingray and Lesser Spiny Eel live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 2500 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Antennae Stingray and Lesser Spiny Eel need?

A minimum of 2500 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 Antennae Stingray and Lesser Spiny Eel 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 Antennae Stingray or Lesser Spiny Eel aggressive?

Antennae Stingray is moderately assertive (5/10) and Lesser Spiny Eel is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Antennae Stingray and Lesser Spiny Eel need?

Both species overlap in the 6.5–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Lesser Spiny Eel being nocturnal affect compatibility?

Lesser Spiny 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 Lesser Spiny Eel during evening hours.


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