Can Flower Stingray and Needlenose Gar Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Possible with Caution

Keeping Flower Stingray and Needlenose Gar together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 1700 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Flower Stingray

Potamotrygon schroederi

Needlenose Gar

Xenentodon cancila

🐟Family Group
Flower Stingray
Oddballs
Needlenose Gar
Oddballs
Temperament
Flower Stingray
Semi-Aggressive (6/10)
Needlenose Gar
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Flower Stingray
24–29°C
Needlenose Gar
22–28°C
pH Range
✓ Compatible
Flower Stingray
6–7.5
Needlenose Gar
6.5–7.5
Hardness (dGH)
✓ Compatible
Flower Stingray
1–12
Needlenose Gar
5–15
Water Type
✓ Compatible
Flower Stingray
Freshwater Only
Needlenose Gar
Brackish Tolerant
Flow Preference
✓ Compatible
Flower Stingray
Moderate
Needlenose Gar
Moderate
Min Tank Volume
Combined: 1700 L
Flower Stingray
1700 L
Needlenose Gar
200 L
Swimming Level
✓ Different zones
Flower Stingray
Bottom
Needlenose Gar
Top
🏷️Behavior Tags
Flower Stingray
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Plant Destroyer
Needlenose Gar
Piscivore (Eats small/nano fish)Jumper (Lid Required)Shrimp EaterFry PredatorHyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Flower Stingray and Needlenose Gar?

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.

Flower Stingray
Needlenose Gar
Test both in my tank

Behaviour & Temperament

Both Flower Stingray and Needlenose Gar are moderately assertive species with an aggression score of 6/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

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

Worth noting: Needlenose Gar 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 5–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Flower Stingray and Needlenose Gar together, plan for an aquarium of at least 1700 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 - Floating. 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.

Why This Pairing Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. Flower Stingray and Needlenose Gar need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Frequently Asked Questions

Can Flower Stingray and Needlenose Gar live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1700 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Flower Stingray and Needlenose Gar need?

A minimum of 1700 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 Flower Stingray and Needlenose Gar 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 Flower Stingray or Needlenose Gar aggressive?

Flower Stingray is moderately assertive (6/10) and Needlenose Gar is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Flower Stingray and Needlenose Gar 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.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
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