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.

Fruit fly cultures for sale

Fruit Fly Insects Cultures Cups 32oz With Vented Lid Pack 24 “FREE SHIPPING”



Fly Cultures Cups Of 32oz With Vented Lid LOT OF 24 “FREE SHIPPING”. Condition is New. Shipped with USPS Priority Mail.... more

Bean Beetle Culture - LOADED & PRODUCING NOW! Fruit Fly Replacement! Mite Free



You are buying our Highest Quality Bean Beetle culture protected by our Live Arrival Policy. They will arrive loaded with larva and eggs. The cultures can produce beetles for as long as 1-2 months with good care. Take comfort in knowing that you are buying the highest quality Bean Beetles on ebay and the lowest price possible. These prolific beetles are a great addition to any insectivore's diet. Whether it be a young panther chameleon or an adult frog. These beetles are packed with protein ... more

Fruit Fly Culture Kit (Makes 10 Cultures)



Drosophila fruit fly culture kit Kit includes media, excelsior, cups and lids to make 10 cultures. Media preparation instructions provided. 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. We use a mold inhibitor to prevent mold and increase the longevity of the culture. Our media produces high yields that we use to feed our reptiles and amphibians. For our animals availability list by email. If you... more