

Cardinal vs Rummynose tetras
What do people usually prefer as a schooling fish? I am torn about which to choose. I really want a true schooling fish that sticks together in a group, but also colourful and bright.
In a lot of videos I’ve watched it seems like cardinals don’t really school tightly, they kind of just hover spaced further apart. I love the tight schooling behaviour that rummynoses do, but am not completely sold on them due to the lack of colour in comparison to the cardinals.
Is it worth trading off colour for schooling behaviour? Or do people have different schooling fish recommendations that maybe tick both boxes?