I was discussing this with my girlfriend and we were having a debate over which is better to feed Frozen bloodworms or live blackworms? I do feed nls as a primary diet but i like to vary their diet, plus i have a jack dempsey who won't eat pellets, he started this at 2" when all i feed was pellets, i have even tried starving him for 2 1/2 weeks. I also do homeade food but still like to vary their diet more.