Ken Sauer
Fish Fanatic
They seem to be happy. Not schooling, but zipping all over the tank constantly. chasing one another, etc.Well I can't say for sure
I only had one, and compared to my minnows Lollypop was all over the place.
At my local fish store whenever I see them in groups, especially large ones, they are mellow. Probably just a comfort thing? More of their own...how are your 8 doing?
I imagine they are VERY happy in that size tank. Are they swimming all together?