Gambusia affinis
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Gambusia affinis

Common Names: Gambusia
Mosquito Fish
Synonyms: Fundulus inurus
Gambusia affinis affinis
Gambusia affinis katruelis
Gambusia gracilis
Gambusia humilis
Gambusia patruelis
Haplochilus melanops
Heterandria affinis
Heterandria patruelis
Zygonectes brachypterus
Zygonectes gracilis
Zygonectes inurus
Zygonectes patruelis
Family: Poeciliidae
Category: Livebearers
Distribution: America - Central; Central America and southern USA.
Main Ecosystem: Lake; Lake
Temperament: Peaceful; Ranges from semi-peaceful to very agressive.
Diet: Carnivore; Carnivore
Care: Feed with flakes. Extremely easy to keep, and adaptable to almost all water values. Not usually kept except for feeding to larger fish.
6 - 8
15°C - 30°C
59°F - 86°F
5 dH - 30 dH
Potential Size: Male: 4cm (1.6")
Female: 4cm (1.6")
Water Region: Middle; Middle
Activity: Diurnal; Diurnal
Gender: Males are smaller with a gonopodium (extended anal fin).
Breeding: Livebearers. Easy to breed, just combine males with females.
Comments: This fish has been declared a noxious pest in Australia. Gambusia affinis has become established in many countries to reduce mosquito numbers.
Main Colours: Brown
Markings: No Markings
Mouth: Upturned
Tail: Convex
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Image Credit: ©
Submitted By: Adam
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