Only 3 in that big tank? Dang. Did you at least get to see them moving about in the day time?

I know they can be in groups, and I never had luck with them when I bought 1 or 2 at the LFS. I hoped a larger group of them would make them more likely to be visible. (Safety in numbers?) I hated to spend $6 a pop for a snack or something that just disappeared into the deep unknown.

I know the risk of adding them. I like shrimp, I want to try it. I don't want so few that I never see them, but not so many that they're a nuisance.