yes, I enjoy watching them live feed, plus it feels more natural to me. I want to mimick their natural scene as much as possible, but if that means risking their health and the tank's well being, then na.
remember they are scavengers and opportunistic hunters so the tilapia falls into the scavenger side, you can also feed red wigglers and eventually nightcrawlers along with ghost shrimp. Like most fish a variety is best