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Fruit flies part 6: Troubleshooting

Worm cultures
white, grindal
banana & micro worms
Small sponge filters
great for killifish
best prices
Pearl Killifishes
by Wilson Costa
probably the best Cynolebias
book available
Aqualog: Old World Killis II
Lothar Seegers
hundreds of photos
Epiplatys & Nothobranchius

Introduction | Fruit fly food | Housing & handling | Care Regime | Feeding to fish | Troubleshooting

Media consistancy problems

When preparing food for the flies, it is easy to make it too hard or too soft. This is an advantage of the Sussex media mentioned in Fruit fly food which is right every time. Too wet media can be countered by inserting twisted or screwed kitchen roll or newspaper - both absorbing some moisture and creating walkways for the flies. This can be done in any case, and can increase fly yields if there is often a shortage of pupation sites.

Mold

Mold is scarcely a problem if mold inhibitors are used, but also moldy cultures are usually lightly populated. The flies (and larvae) prevent mold when present in great enough numbers. Reusing old vials will also increase the likelihood of mold unless cleaned with an autoclave.

Mites

Can destroy a culture. Some merely feed on the media with the flies, but some are parasitic or egg eating. Mites can be treated with Benzyl benzoate soaked bungs, but it is probably easier to discard all cultures and get clean fly stocks. Mite prevention is probably more appropriate, and flies should be housed away from possible contamination, such as in a larger closeable cabinet.

Fly explosions

Yes they will get out. I use a vinegar trap; vial of vinegar with a perforated tin foil lid. The flies head straight for it.

A home-made fly trap thats very effective


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US ebay listings

Fruit Fly Culture, Wingless Fruit Flies, Melanogaster. Frog, Toad, Fish Food.

$9.95
Fruit Fly Starter Culture (Flightless - Drosophila Hydei) + FREE Fruit Fly Kit

$7.99
Wingless Drosophila melanogaster Fruit Fly Culture 10 culture kit with heat pack

$29.00
Hydei FRUIT FLY CULTURE Preloaded AFFORDABLE + ROBUST with Care Guide!

$13.50
Fruit Fly Culture Flightless Fruit Flies, Hydei. Frog, Toad, Reptile, Fish Food

$9.95
NEW! Fruit Fly Starter Culture 🐝🐝 (Drosophila Hydel) 🐝🐝Free S&H WITH HEAT

$10.95
See more results on eBay here

Canadian ebay listings

Repashy Superfoods 105.6oz SuperFly Fruit Fly Culturing Medium -JUMBO SIZE 6.6LB

C $84.95
Repashy Superfoods 17.6oz SuperFly Fruit Fly Culturing Medium -

C $29.95
See more results on eBay here