Feeding Apistos

The main problem I've found with pellets is they tend to be too big. I feed mine bloodworms, brine shrimp, and flakes.
 
I think some sort of live feed would be greatly appreciated; especially for breeders. Microworms are really easy to keep a good supply of if you can get a sample of a culture. :)
 
What do you need to keep microworms?
 
a tupperware container and something like bread or oatmeal or instant mashed potatoes, even something like boiled sweet potatoes works really well.
 
Is there anything else that can be grown that easily?
 
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