How do I keep my fruit flys alive??

[gregcellent]

The one in the front is about 2 months and the one in the back has been growing for about 1 month..what am I supposed to do to keep the flies alive? I transferred some into a container with bananas but not sure if that's a good idea or not.

[deranged chipmunk]

you need to continually make new ones. they are only good for about a month, once they start producing. then all the food in the media is used up and the flies won't reproduce anymore. personally, i make 2 cultures every other week, so i never run out.. a lot depends on how many frogs you have and how often you feed them. some people make one per week, others need to make more.

[Dale D]

My cultures usually last 4 to 6 weeks.
The culture I am currently using was started on Nov. 27.
I make 1 new culture of Hydei and 1 culture of melanos each week.