01-15-2020, 08:09 PM
Join Date: Jan 2017
Thanked 7 Times in 7 Posts
Re: Poor fly production
Originally Posted by Broseph
Like Phil said- there are tons of variables that go into fly cultures.
Big ones off the top of my head, by order of importance:
When I say Moisture (and list Nutrition at the bottom of the list), Iím mostly talking about the consistency of your media. Iím convinced that the wild variability between different people and the big name cultures is that each brand of culture has a different dry ingredient:water ratio. And based on everyoneís local culture environment (temperature, humidity, airflow), each brand performs differently.
72F is a little on the cool side IMO. The flies will still produce, but generation time would be faster if warmer.
Population density refers to the number of flies you start each culture with, and how dense you allow it to get as it produces. You might just be starting with small seed numbers compared to Joshís cultures.
Surface area- whatever substrate youíre using for maggots to pupate on. Not a big deal, lots of options.
Nutrition- listed last to convince you the problem isnít the particular brand of media. Still pretty important, but easily covered by using any big brand media.
ETA: all the Mad Science and opportunities for failure is why people recommend culturing flies for a month or two before getting frogs. A certain amount of failure and experimentation is part of the process.
Does surface area matter that much? I never had much issueas with production and I only put in a single toilet roll for them to climb on. Drosophila hydei larvae tend to make the roll disappear relatively quickly so all pupae are put on the sides and bottom of the culture. Yet I'm still getting loads of flies.
Maybe I could have even more flies if I give them more surface area, perhaps this is worth a test.
Currently keeping Dendrobates auratus "panama special", Mantella baroni and Afrixalus dorsalis