yeah, they deffiniately do better and come out more in large numbers. i keep 30-40 in my 120g and i see them all the time. and its heavily planted. they are mostly wild caught, so when you get them at the lfs its hit and miss with survival rates. i usually buy all i can when stocking a tank with them, you will lose some but enough should survive to give you a nice school. they like to swim a the midlevel of my tanks and only browse the bottom at feeding time.