Can Florida Gar and Forktail Blue-eye Live Together?

🔴Not Recommended

Florida Gar and Forktail Blue-eye are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Florida Gar

Lepisosteus platyrhincus

Forktail Blue-eye

Pseudomugil furcatus

🐠Family Group
Florida Gar
Oddballs
Forktail Blue-eye
Rainbowfish
Temperament
Florida Gar
Aggressive (7/10)
Forktail Blue-eye
Peaceful (2/10)
Temperature
✓ Compatible
Florida Gar
15–30°C
Forktail Blue-eye
24–28°C
pH Range
✓ Compatible
Florida Gar
6–8
Forktail Blue-eye
7–8
Hardness (dGH)
✓ Compatible
Florida Gar
8–20
Forktail Blue-eye
5–15
Water Type
✓ Compatible
Florida Gar
Brackish Tolerant
Forktail Blue-eye
Freshwater Only
Flow Preference
✓ Compatible
Florida Gar
Moderate
Forktail Blue-eye
Moderate
Min Tank Volume
Combined: 1320 L
Florida Gar
1100 L
Forktail Blue-eye
55 L
Swimming Level
Shared: 2 zones
Florida Gar
TopMiddle
Forktail Blue-eye
TopMiddle
🏷️Behavior Tags
Florida Gar
Piscivore (Eats small/nano fish)Jumper (Lid Required)Hyperactive / Fast Swimmer
Forktail Blue-eye
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)

Behaviour & Temperament

Florida Gar is a semi-aggressive species (7/10), while Forktail Blue-eye is peaceful (2/10). This notable difference means Florida Gar may occasionally assert dominance over Forktail Blue-eye.

Florida Gar and Forktail Blue-eye both frequent the Top (Surface) and Middle (Open Water) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

There is a critical concern: the Piscivore (Eats small/nano fish) behaviour of one fish directly conflicts with the Nano / Bite-sized (Predation Risk) trait of the other — piscivorous fish will prey on nano-sized tank mates..

Worth noting: Florida 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 7 and 8. 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 Florida Gar and Forktail Blue-eye 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.

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: Plants - Floating, 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.

Find the right tank equipment

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Frequently Asked Questions

Can Florida Gar and Forktail Blue-eye live together?

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

What size tank do Florida Gar and Forktail Blue-eye 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 Florida Gar and Forktail Blue-eye 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 Florida Gar or Forktail Blue-eye aggressive?

Florida Gar is semi-aggressive (7/10) and Forktail Blue-eye is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Florida Gar and Forktail Blue-eye need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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