Yes, one breeding culture and the next dropping the matured culture into the display. Yes, it is a lot of work. But we didn't get into this hobby without thinking this was going to be easy. That's what makes this hobby so rewarding ang interesting. We are trying to mimic Mother Nature's work in a closed environment; a functioning enclosed ecosystem that works in harmony. If this was easy everyone would be doing it and this hobby would loose its appeal. I don't think Mother Nature ever complained that it was a lot of work