Can Amazon Puffer and Endler's Livebearer Live Together?

🟡Possible with Caution

Keeping Amazon Puffer and Endler's Livebearer together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 96 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Amazon Puffer

Colomesus asellus

Endler's Livebearer

Poecilia wingei

🐠Family Group
Amazon Puffer
Puffers
Endler's Livebearer
Livebearers
Temperament
Amazon Puffer
Mostly Peaceful (3/10)
Endler's Livebearer
Peaceful (1/10)
Temperature
✓ Compatible
Amazon Puffer
22–28°C
Endler's Livebearer
22–28°C
pH Range
✓ Compatible
Amazon Puffer
5.5–7.5
Endler's Livebearer
7–8.5
Hardness (dGH)
✓ Compatible
Amazon Puffer
4–15
Endler's Livebearer
10–25
Water Type
✓ Compatible
Amazon Puffer
Freshwater Only
Endler's Livebearer
Freshwater Only
Flow Preference
✓ Compatible
Amazon Puffer
Moderate
Endler's Livebearer
Moderate
Min Tank Volume
Combined: 96 L
Amazon Puffer
80 L
Endler's Livebearer
19 L
Swimming Level
Shared: 2 zones
Amazon Puffer
MiddleBottomTop
Endler's Livebearer
TopMiddle
🏷️Behavior Tags
Amazon Puffer
Snail EaterFin NipperHyperactive / Fast SwimmerJumper (Lid Required)Shrimp EaterNocturnal
Endler's Livebearer
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator

Behaviour & Temperament

Amazon Puffer is a generally mild-mannered species (3/10), while Endler's Livebearer is peaceful (1/10). This modest difference means Amazon Puffer may occasionally assert dominance over Endler's Livebearer.

Amazon Puffer and Endler's Livebearer both frequent the Middle (Open Water) and Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.

Worth noting: Amazon Puffer is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Amazon Puffer is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.

Water Parameters

The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 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 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Amazon Puffer and Endler's Livebearer together, plan for an aquarium of at least 96 litres with a minimum length of 75 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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), Driftwood (Digestion/Hiding), Plants - Densely covered, Shells (Breeding/Hiding), 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.

Diet & Feeding

Feeding time deserves special attention with this pairing. Amazon Puffer is a known shrimp eater and may prey on small invertebrates or nano fish like Endler's Livebearer.

Frequently Asked Questions

Can Amazon Puffer and Endler's Livebearer live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 96 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Amazon Puffer and Endler's Livebearer need?

A minimum of 96 litres (tank length at least 75 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 Amazon Puffer and Endler's Livebearer together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Amazon Puffer or Endler's Livebearer aggressive?

Amazon Puffer is generally mild-mannered (3/10) and Endler's Livebearer is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Amazon Puffer and Endler's Livebearer need?

Both species overlap in the 7–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Amazon Puffer nip Endler's Livebearer's fins?

Amazon Puffer is a known fin nipper. If Endler's Livebearer has long or flowing fins, there is a real risk of fin damage. Keeping Amazon Puffer in a larger group can help redirect nipping behaviour toward conspecifics.

Does Amazon Puffer being nocturnal affect compatibility?

Amazon Puffer 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 Amazon Puffer during evening hours.


Related Comparisons