Hey Sherry,
The Roselines are doing just totally awsome. They seem to hang close to each other, and school good. Would be better looking in a larger tank though. A 75G is just barely big enough for these guys. One is about 3 inches, and the others are more like 4-4.5 inches. But awsome to watch. So cool how they just glide through the water.
Edit:
I wrote this to a couple other members and would like to share with all....
Since they are part of the tetra family, they school fairly well. They don't always school, but for a good part of the time, they like to hang out with each other, swimming around the tank.
I've seen on sites where they say minimum tank size is as low as 30G, but I don't recommend that. Mine would be cramped in a 30G, nearly 4 inches each. I think the smallest is 3 inches. The rest are much bigger than that one. My minimum would be 55G, preferably larger. In my 75G, it does give some room to swim around, but for the schooling effect, would probably be more apparent in a much larger tank. And being a tetra, 3 or more is preferred to do good. But a larger number is better.
They are very mildly tempered. Calm, and loves to be fed. They feed both in the water column and at the surface, sometimes with a big splash. They are also starting to get used to me already.
As with the rams, they get along great. Nobody bothers them, and they don't bother the rams. And with all the color, it's just astounding, the colors of the rams, the colors of the tetras, and now the colors of the roseline sharks. It's just very impressive.
EDIT:
Part of the barb family, not tetra. My error.....
