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Josh's Frogs Melanogaster Fruit Fly Media (makes 20 fruit fly cultures)

$20.99
 (31)

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About This Product

Josh's Frogs Melanogaster Fruit Fly Media is the best in the industry. Each bag of Josh's Frogs Melanogaster Fruit Fly Media contains 10+ cups of fruit fly media. A bag of Josh's Frogs Melanogaster Fruit Fly Media makes 30 - 1/3 cup cultures or 20 - 1/2 cup cultures.

Retains Moisture

The #1 killer of fruit fly cultures is low humidity. Therefore, Josh's Frogs Fruit Fly Media uses powdered potatoes rather than potato flakes. This not only allows for a more thorough mix of ingredients, but it also allows the media to hold more water. This keeps the media from drying out and prematurely killing the culture.

Great Smell

Josh's Frogs Fruit Fly Media contains two natural anti-bacterial/anti-fungal ingredients. This eliminates the nasty smell of a bacteria/fungi infected culture. Many customers compare the smell of our cultures to freshly baked bread.

High Yields

Bacteria, fungus, and molds compete for nutrients with the fruit flies. Josh's Frogs Fruit Fly Media fights these invaders so your fruit fly cultures produce not only more fruit flies, but healthier fruit flies. We have the best producing fruit fly media on the market, and have been constantly perfecting it since 2004. We approach fruit fly culturing from a scientific standpoint, and produce over 1,200 - 32 oz. fruit fly cultures a week.

Packed with Vitamins and Color Enhancers

We believe that healthy fruit flies lead to healthy herps. For that reason, Josh's Frogs Fruit Fly media is full of vitamins and color enhancers from natural sources.

Directions:

  1. Pour 3/4 cup of boiling R/O or bottled water over 1/2 cup of media (don't stir, just let it soak in! It may take a couple of days to absorb fully).
  2. Add a handful of Excelsior to the cup.
  3. Cover the cup and wait for it to cool.
  4. Add 25-50 flies.

Cultures should be kept below 85°F and will start producing flies in 12-14 days. If the cultures seem to be drying out (or molding), spray with R/O water and use more water when making future cultures. Josh’s Frogs recommends keeping the cultures in a plastic drawer system to prevent them from drying out.

This media contains a mold inhibitor. Shake well before using.

Pro Tip: It's best to store media in the freezer so it stays as dry as possible. If the mold inhibitor within our recipe is exposed to moisture before a culture is made, it can deactivate the ingredient.

Find our other fruit fly culturing supplies HERE, and watch our video on how to start your own culture!

Melanogaster media can be used to culture hydei fruit flies, but keep in mind that melanogaster media contains less protein (perfect for these smaller flies). It's highly recommended to culture flies on their own media, as hydei cultured on melanogaster media for multiple generations can result in smaller flies.

Hydei media should not be used to culture melanogaster flies, as they have a difficult time breaking down the higher protein content in our hydei media.


WARNING: This product can expose you to a chemical (methanol), which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Shipping

This product ships to your doorstep. Most orders placed before 2pm ET on business days will ship out the same day.

Customer Reviews

Based on 31 reviews

Review data

5 star reviews

97%

4 star reviews

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3 star reviews

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2 star reviews

3%

1 star reviews

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Reviews

Graeme

Perfect fruit fly media

Reviewed on August 4, 2025.

Both the Hydei and Melanogaster media are great for their respective feeders - I've noticed some molding on mine during summer months - I mix in a dash of vinegar to combat that and it's been working great. I keep cultures for 28 days - towards the end nearly all of the food is eaten and fruit fly production is slowing down, just as expected.

Debra

Best advice and products and customer service

Reviewed on July 23, 2025.

Use this website to order, the Amazon orders are treated the same, but this site has the instructions and customer service to enhance your husbandry. I'm growing my own fruitfly cultures with their guidance and products.

Tyler

Great Product

Reviewed on November 14, 2024.

I love this media and it smells good. My melano flies grow in abundance with this.

Jordan

Great mix

Reviewed on November 13, 2024.

This never disappoints. Makes great cultures for my frogs and spiderlings. Smells better than others out there and haven't had any issues. Will definitely order again.

Robyne

This product is awsome...

I got this media b/c i was in an emergency and i needed something that would work for me. I made a culture, and 2 weeks letter it was teaming the flys, it does smell great and it works wonderfully, i definetly recomend this product to people who do there own fly cultures.

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