Mosquitofish
Gambusia affinis
Family: Poeciliidae • Origin: Various
Mosquitofish (Gambusia affinis) is a semi-aggressive livebearer reaching 2.5 inches. Can be kept singly. Minimum tank size: 10 gallons.
Min Tank
10 gal
Max Size
2.5"
Temperature
60-80°F
pH
6.5-8
Lifespan
4 years
School Size
Solo OK
Swim Level
top
Hardness
5-15 dGH
semi-aggressivebeginneromnivore
Care Tips
- • Max size: 2.5 inches
- • Temperature: 60-80°F
- • pH: 6.5-8
- • Can be kept alone or in pairs
- • semi-aggressive temperament — choose tankmates carefully
Feeding: Standard omnivore diet. Accepts foods appropriate for Poeciliidae species.
Compatibility Notes: Typical semi-aggressive Poeciliidae species.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 10 gallons
- Recommended Tank Size
- 15 gallons
- Swimming Level
- top
Water Parameters
- Temperature
- 60–80°F
- pH Range
- 6.5–8
- Hardness (dGH)
- 5–15
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- semi-aggressive
- Aggression Level
- 3/5
- Schooling
- No
- Territorial
- Yes
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Typical semi-aggressive Poeciliidae species.
Breeding
- Breeding Type
- live bearer
- Breeding Difficulty
- moderate
- Lifespan
- 4 years
Ideal For
10 gallon
Compatible Tank Mates
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Neon Tetra
Paracheirodon innesi
70-81°FpH 6-710+ gal
peacefulschooling 6+1.5"
Ember Tetra
Hyphessobrycon amandae
73-84°FpH 5.5-75+ gal
peacefulschooling 8+0.8"
Rummy Nose Tetra
Hemigrammus rhodostomus
75-84°FpH 5.5-720+ gal
peacefulschooling 6+2.5"
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
73-81°FpH 5.5-7.510+ gal
peacefulschooling 6+1.6"
Serpae Tetra
Hyphessobrycon eques
72-82°FpH 6-7.520+ gal
semi-aggressiveschooling 6+1.75"
Black Skirt Tetra
Gymnocorymbus ternetzi
70-82°FpH 6-7.515+ gal
peacefulschooling 5+3"
