Just a couple of points. I believe red jewel cichlids are carnivores and I don't think they are especially susceptible to bloat. Most cichlids from Lake Malawi are susceptible to bloat. Secondly, bloat does not necessarily mean the fish gets bloated. Actually, usually they stop eating and get rather skinny prior to dying. From what I know, the disease "bloat" is an intestinal obstruction in the fish. If the fish continued to eat with it, I am sure they would get bloated, but because they usually stop eating, they get skinny. I am not sure if anyone knows exactly what triggers bloat, but from what I have heard there is an increased incidence in certain species of fish, such as mbuna and others from Lake Malawi, when fed certain foods such as blood worms. A lot of people do feed blood worms and their fish do fine. However, IMO it would not be worth the risk when there are lots of other choices for feeding available.