Fruit flies, or Drosophila are an excellent food for most small fish, largely representing the natural killifish diet of invertebrates. Flies are the perfect food for surface dwelling fish species, but even killies from the lower strata, like Nothobranchius can be trained to eat them. Drosophila larvae are also a good food for killies, and although rarely a 'favourite' food, are an easy source of small food when worms are not available.

A Rivulus xiphidius eyes up a fruit fly
A Rivulus xiphidius eyes up a fruit fly

Feeding fruit fly larvae to killifish

Larvae of any size can be fed to killies to suit their needs. Lots of larvae can be scraped from the sides of their vial, and if a drip of water is added , the rest will make their way out of the media and up the sides. After this you can leave the remaining larvae to hatch turn into flies, or to be really thorough you can add the contents of the vial to a strong (3M) salt solution. The food dissolves away or sinks and the larvae will float, allowing them to be scooped out with a net, rinsed and fed. It is crucial not to over feed with Drosophila larvae, as they drown very quickly (1 hour or less) and although fish do eat them, they do not eat them with the same relish that they enjoy other insect larvae.

Nothobranchius virgatus feeding on Drosophila larvae
Nothobranchius virgatus Fula A Zarga SUD 98 feeding on Drosophila larvae
Cute fish look evil from above
Cute fish look evil from above

Feeding with flies

Simple throw them in! The flies float on the surface, sometimes in clumps. If they can get to the sides they will climb out. Feeding fish with fruit flies is easy when the fish are hungry and waiting, however some will always escape. Surface feeders, such as Epiplatys will devour them quickly, however other species need to be trained, not so much to eat them, but to notice that they are there! Unless your fish are mad for fruit flies, only feed a few at a time! Again, 5-8 minutes in a freezer can immobilise flies for some time, but they do wake up after a few seconds in warm tank water.

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100 Flightless Drosophila Melanogaster Fruit Flies

Cleveland, Georgia, 305**, UNITED STATES OF AMERICA


Only thebest: Unlike inferior reptile supplies, this premium container of 100Flightless Drosophila Melanogaster Fruit Flies has been raised under thestrictest quality controls in Cleveland, Ga. We researched common complaintsabout other reptile food and set ourselves the challenge of supplying the bestfruit flies in the market. With meticulous attention to quality, this containerof feeder fruit flies are second to none. Here??s what makes our fruit fly foodfor amphibians, reptiles, tropical... more

36 cups and vented lids. Perfect of fruit fly cultures. Free Shipping.

Gadsden, Alabama, 359**, UNITED STATES OF AMERICA


Shipment includes:(36) 32 oz cups(36) vented lids... more

24 cups and fabric vented lids. Great for fruit fly cultures, plants, insects.

Gadsden, Alabama, 359**, UNITED STATES OF AMERICA


Shipment includes:(24) 32 oz cups(24) vented lids... more

Flightless Fruit Fly 2 PACK cultures Dart Frog Food Reptile Food FREE SHIPPING

Dover, Pennsylvania, 173**, UNITED STATES OF AMERICA


This 2 pack of Flightless Fruit Fly cultures is the perfect addition to any reptile or dart frog owner's collection. These cultures provide a nutritious and tasty food source for your pets without the hassle of dealing with live insects. The flies are easy to maintain and will last for several weeks, ensuring that your pets are well-fed and healthy.
With free shipping included, this is a great deal that you don't want to miss out on. Whether you're a seasoned reptile owner or a new dart frog... more

Fruit Fly Media Culture Mix Kit Makes 10 culture 1 5Lb (24oz)

Wheeling, Illinois, 600**, UNITED STATES OF AMERICA


Fruit fly Media Culture Mix Kit contains 1 5Lb (24oz) Of Media Excelsior, Cups / Lids to makes 10 fruit flies cultures.
It does not include live flies
Our fruit fly media works for both melanogaster and Hydei. It is Homemade with the best ingredients to produce top quality flies for your animals . Our fruit fly media contains brewer's years vitamins B also ingredients anti-bacterial to avoid the bad smell, we use a mold inhibitor to prevent mold. The ingredients we use give increase ... more