Can Amazon Puffer and Florida Gar Live Together?

🟡Possible with Caution

Keeping Amazon Puffer and Florida Gar together is possible but requires caution due to differing aggression levels. Provide a spacious tank of at least 1320 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

Florida Gar

Lepisosteus platyrhincus

🐠Family Group
Amazon Puffer
Puffers
Florida Gar
Oddballs
Temperament
Amazon Puffer
Mostly Peaceful (3/10)
Florida Gar
Aggressive (7/10)
Temperature
✓ Compatible
Amazon Puffer
22–28°C
Florida Gar
15–30°C
pH Range
✓ Compatible
Amazon Puffer
5.5–7.5
Florida Gar
6–8
Hardness (dGH)
✓ Compatible
Amazon Puffer
4–15
Florida Gar
8–20
Water Type
✓ Compatible
Amazon Puffer
Freshwater Only
Florida Gar
Brackish Tolerant
Flow Preference
✓ Compatible
Amazon Puffer
Moderate
Florida Gar
Moderate
Min Tank Volume
Combined: 1320 L
Amazon Puffer
80 L
Florida Gar
1100 L
Swimming Level
Shared: 2 zones
Amazon Puffer
MiddleBottomTop
Florida Gar
TopMiddle
🏷️Behavior Tags
Amazon Puffer
Snail EaterFin NipperHyperactive / Fast SwimmerJumper (Lid Required)Shrimp EaterNocturnal
Florida Gar
Piscivore (Eats small/nano fish)Jumper (Lid Required)Hyperactive / Fast Swimmer

Behaviour & Temperament

Amazon Puffer is a generally mild-mannered species (3/10), while Florida Gar is semi-aggressive (7/10). This notable difference means Florida Gar may occasionally assert dominance over Amazon Puffer.

Amazon Puffer and Florida Gar 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.

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: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat. 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 6 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 8–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Amazon Puffer and Florida Gar together, plan for an aquarium of at least 1320 litres with a minimum length of 240 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.

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Frequently Asked Questions

Can Amazon Puffer and Florida Gar live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1320 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Amazon Puffer and Florida Gar need?

A minimum of 1320 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 Amazon Puffer and Florida Gar 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 Florida Gar aggressive?

Amazon Puffer is generally mild-mannered (3/10) and Florida Gar is semi-aggressive (7/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Amazon Puffer and Florida Gar need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Amazon Puffer nip Florida Gar's fins?

Amazon Puffer is a known fin nipper. If Florida Gar 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.


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