Can Antennae Stingray and Swordtail Live Together?

Not Recommended

Antennae Stingray and Swordtail are not recommended as tank mates due to incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Antennae Stingray

Plesiotrygon iwamae

Swordtail

Xiphophorus hellerii

🐠Family Group
Antennae Stingray
Oddballs
Swordtail
Livebearers
Temperament
Antennae Stingray
Semi-Aggressive (5/10)
Swordtail
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Antennae Stingray
24–28°C
Swordtail
21–28°C
pH Range
✓ Compatible
Antennae Stingray
6–7
Swordtail
7–8.3
Hardness (dGH)
✗ No overlap
Antennae Stingray
1–10
Swordtail
12–30
Water Type
✓ Compatible
Antennae Stingray
Freshwater Only
Swordtail
Brackish Tolerant
Flow Preference
✓ Compatible
Antennae Stingray
Moderate
Swordtail
Moderate
Min Tank Volume
Combined: 2500 L
Antennae Stingray
2500 L
Swordtail
110 L
Swimming Level
✓ Different zones
Antennae Stingray
Bottom
Swordtail
TopMiddle
🏷️Behavior Tags
Antennae Stingray
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)
Swordtail
Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Stocking calculator

Can your tank handle Antennae Stingray and Swordtail?

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
Swordtail
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Behaviour & Temperament

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

In terms of spatial distribution, Antennae Stingray prefers the Bottom (Substrate) zone, whereas Swordtail occupies the Top (Surface) and Middle (Open Water) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Swordtail 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 7 and 7. Maintaining a stable value within this band is more important than hitting an exact number.

Hardness requirements are incompatible: Antennae Stingray needs 1–10 dGH while Swordtail requires 12–30 dGH.

Tank Setup

To house Antennae Stingray and Swordtail 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.

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), 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 Swordtail live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Antennae Stingray and Swordtail 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 Swordtail 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 Swordtail aggressive?

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

What pH do Antennae Stingray and Swordtail need?

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


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