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
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.

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.
Fruit fly cultures for sale
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San Diego, California, 921**, UNITED STATES OF AMERICA
$10
Buy Drosophila melanogaster (Turkish Glider) Fruit Fly Cultures - Premium Feeder Insects for Reptiles & Amphibians
Enhance your petâs diet with the exceptional nutrition of Drosophila melanogaster (Turkish Glider) fruit fly cultures. This unique strain, known for its gliding movement and high nutritional value, is an ideal feeder insect for small reptiles, amphibians, and other insectivores. Whether youâre feeding dart frogs, baby chameleons, or mantises, the Turkish Glider fruit...
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San Diego, California, 921**, UNITED STATES OF AMERICA
$10
Buy Drosophila hydei Flightless Fruit Fly Cultures - Superior Feeder Insects for Medium to Large Reptiles & Amphibians
Enhance your petâs diet with Drosophila hydei flightless fruit fly culturesâan excellent live food source for medium to large reptiles and amphibians. Drosophila hydei are known for their larger size, slow movement, and unique flightless trait, making them the ideal feeder insect for chameleons, frogs, geckos, and other insectivores that need more substantial ...
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Etters, Pennsylvania, 173**, UNITED STATES OF AMERICA
$25
The product is a Golden fruit fly culture kit + 1 additional container of just-add-flies food designed for dart frogs and reptiles. Produced by the brand Crazy Frog Lady, this product provides a convenient and natural way to feed your pets. The fruit flies are a nutritious food source for many reptiles and amphibians, promoting healthy eating habits and reducing the need for processed diets. With this product, you can easily maintain a steady supply of live insects for your pets to enjoy
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Middletown, Pennsylvania, 170**, UNITED STATES OF AMERICA
$19
Our Flightless Fruit Fly Culture 32 oz are made with Repashy
Live Flightless Fruit Flies are a great option for feeding small lizards and many species of frogs, especially because of their reproduction cycle. Each culture of flightless fruit flies has a lifespan of about one month, and even after they die, they will continually pupate from eggs laid by the adults in the culture! This will allow you to keep fruit flies for a while, as long as they are taken care of accurately
Oue Fruit ...
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Porter, Texas, 773**, UNITED STATES OF AMERICA
$15
Hydei Fruit Fly Culture (Drosophila hydei)Size: Adults reach approximately 4mm in length, making them one of the larger flightless fruit fly species
These Hydei are extremely prolific and make excellent feeders for small reptiles, amphibians, jumping spiders, and other invertebrates
Each culture is started fresh in a 32 oz vented cup using our high-quality fruit fly media
a nutrient-rich blend designed to support strong fly production and extended culture life
Get the Best ...
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