It depends what you're culturing them for. If it's for fry, go for it.
I cultured rotifers and phyto (nanochloropsis... to feed the rotifers) for one year. I fed the tank nightly. I never really noticed the polyps caturing the rotifers. After a year of culturing, I was given a bar of frozen cyclopeze at a MACNA. That night I noticed the polyps were actually capturing the CE. I stopped feeding live rotifers shortly afterward.
It was fun, and educational, and it only took about 10 minutes a day. After I stopped feeding, I saw no negative side effects. If I had clownfish fry on the way, I'd start up a culture once again.
JM $.02.