Mummichog (Fundulus heteroclitus)

Mummichogs (Fundulus heteroclitus) are a species of killifish that inhabit estuaries along the Atlantic coast of the United States and Canada. They are also referred to as bull minnows, killis, chubs, and Atlantic killifish. Mummichogs are incredibly hardy and can tolerate a wide-variety of salinities, oxygen-levels, and pollution which has made them a popular choice for research. In fact they were the first fish ever sent to space aboard the United States' first space station, Skylab, in 1973. Both males and females are olive-colored, the females tend to be relatively plain while the males tend to be darker and are adorned with white and yellow flecks as well as thin, silvery bars arranged vertically across their sides. Breeding males are particularly colorful, developing a steely-blue dorsal and the area before the anal and caudal fins becoming bright yellow. 

Mummichogs make for entertaining captives as they are very active and fun to feed. They can be kept with a wide variety of other fish but they can be a bit obnoxious so tank mates that can fit in their mouths or don't enjoying being disturbed aren't ideal choices. 

Origin: Currently available animals are field-collected and have gone through a preventative quarantine and treatments if necessary. 

Some may have minor cosmetic imperfections such as an imperfect fin or old scar.

*Inquire about larger quantity discounts.*

Care Level: Beginner.

Salinity (SG): 1.000-full marine.

Diet: Omnivores. 

Adult Size: 6” is possible however 3”-5” is more typical.

pH: 7.4-8.5

Water Temps: 60-75F

Other Care Preferences: While they can live in full freshwater at least slightly brackish water is ideal. 

NEVER release your fish into the wild or stock public waterways without permission from a government agency!

*We are a licensed dealer and propagator of reptiles, amphibians, invertebrates, and fish in the state of Pennsylvania. All of our native and game fish (including bullfrogs, northern green frogs, and their tadpoles) come from licensed dealers and propagators with proof of receipt (available upon request to government agencies only). We WILL NOT under ANY circumstance sell any herptiles or fish collected from the commonwealth of PA, so please do not ask!*

Live mummichog killifish (Fundulus heteroclitus) for sale at MJS Reptiles. Live tropical and North American fish, reptiles, amphibians, and invertebrates for sale online and shipped right to your front door!