i have a snowflake eel and also an outbreak of ick at the same time. He didn get it though. They have a very thick covering of mucus around their skin so the ick cant realy stay on long enough to attatch. I would assume if they were relay unhealthy and their mucus coat deminished, it would be possible, but for this to happen, it would probably kill them first. So their chances of not getting ick are much greater than other types of fish.