Normal
while this is the first time I have tried to keep large numbers of slings , I have always had 10-15 at a time since I reentered the hobby 4 yrs ago. back then I had almost a 20% fatality rate and was doing everything "by the book" when I started to experiment with less time consuming methods including several things that are generally considered to be "bad husbandry", I haven't lost a single sling in 6 months. not even sure where I am going with that statement except that I am kind of thinking to myself wtf, how did some of these become widely accepted as things not to do. I was always a little suspect of them not being able to find their prey if in to big of an enclosure . im sure a sling in a 50 gallon tank might have an issue finding a spring tail, but even then I dont know it might not have a problem with it. I know they don't live in 2oz deli cups in the wild...........