Fruit flies part 5: Feeding Drosophila to fish

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

? Fruit Fly Culture, WINGLESS (Small Fruit Fly: D. melanogaster) - 32oz

Shullsburg, Wisconsin, 535**, UNITED STATES OF AMERICA

$8

Although "Turkish Gliders" are a strain of D. melanogaster and are flightless, they are capable of gliding in a downward spiral and inclined to hopping and being more active than regular D. melanogaster making them an enriching activity for your pets!
Looking for an easy and reliable feeder insect for your dart frogs, fish, mantids, or juvenile reptiles? Our Turkish Glider Fruit Fly Cultures are the perfect choice! These small, flightless fruit flies can be easily produced at home ... more

Golden Hydei Fruit Fly Culture + 1 Just Add Flies 4 Dart Frog Food Reptile Food

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
... more

Fruit Fly Culture WINGLESS 3 Pack Lizard And Dart Frog Food Live

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

$30

This Fruit Fly Culture WIngless 3 Pack is perfect for feeding your Lizards and Dart Frogs. The live food is guaranteed to provide your pets with the necessary nutrients to keep them healthy and active. The pack is made from high-quality ingredients and is sure to satisfy your pet's appetite.
The brand, Crazy Frog Lady, is well-known for producing top-quality pet supplies. With this pack, you can be sure that your pets are getting the best possible food. This pack is ideal for reptile owners ... more

Fruit Fly Culture Kit - Makes 6 cultures - with or without flies (retail)

San Diego, California, 921**, UNITED STATES OF AMERICA

$24

This kit contains the following items: 
6 - 32oz deli cups and waffle lids
6 - bags of media
6 - portions of excelsior
6 - labels for identification
1 - choice of starter kit with flies of your choice
 
If you choose the "no fly" option, you get quantity 8 of everything
... more

Turkish Glider Fruit Fly Culture 4 Pack Reptile Dart Frog Food Live

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

$29

32 oz Drosophila Melanogaster (4 Pack) "Turkish Glider" Fruit Fly Culture
Our Fruit Flies are made in house with Repashy
Turkish Glider Melanogaster are the smallest size of fruit flies at 1 / 16 "
Turkish Glider Melanogaster are a winged and slightly darker than the Golden Wingless Melanogaster
This winged form of melanogaster can 'glide' short distances making for a more active feeder enticing even the pickiest of eaters
Turkish Gliders produce fast and consistently with ... more