It really depends on your bgk and the fish you have. Each one has its own personality. Greedy fish like oscars will outcompete the bgk for food but there are work arounds: namely, feed your cichlids pellets first, get them full, then add your bw. Also, it helps if you defrost the bw in water and toss them in so they disperse all over the tank. The bgk has a better chance of finding food imo