Well there is the extra challenge of raising live foods to make things a bit more fun. I think the real reason people culture/feed live food is that you know exactly what is going into your tank.
What you feed your live food, you feed your fish. Just like back in the day when I raised crickets/mice for my reptiles, I'd gut load the crickets with the proper food, and feed the mice healthy foods to insure that my reptiles got everything they needed.
On top of that, I know live food can trigger a breeding reaction in a lot of fish. My cheapo neon tetras started doing the naughty after I tossed in a few mosquito larva in the tank lol.
What you feed your live food, you feed your fish. Just like back in the day when I raised crickets/mice for my reptiles, I'd gut load the crickets with the proper food, and feed the mice healthy foods to insure that my reptiles got everything they needed.
On top of that, I know live food can trigger a breeding reaction in a lot of fish. My cheapo neon tetras started doing the naughty after I tossed in a few mosquito larva in the tank lol.