It must be possible, but I don't know how. I was always told to feed Hikari because of their 100% safe bloodworm sterilization process. This is what it says on the Hikari frozen bloodworms: Bio-pure blood worms are excellent for all types of tropical fish. Three-step sterilization ensures unequalled product quality - no harmful bacteria, parasites, or foul odors. It's a staple daily food for my discus and I've never had any trouble or parasites with my fish. Years and years ago, I used to feed some brand of freeze dried and it seemed like the fish always were sick. Just can't say for sure it was the food or not. But I won't ever use it again.