oh ya, one of my all time favorite schools. i prefer the regular white clouds. i LOVE to watch that DANCE the boys do for each other! it's fascinating! it cracks me up! they shimmer and they are beautiful.
I used to have a boat load, but over the last several years i have only have four of them, and they actually get kind of big if they manage to get old and my four are nice big grown ups. Now I want to get more. actually I have been wanting many more for quite some time, just waiting for healthy ones.
I think a big tank with a few schools of the smaller fish, like the white clouds, are great to sit and watch.
Currently in my 100g I'm building up a school of pristella maxillaris. They come in many different color mutations which makes it interesting. The gold pristellas swimming with the red bellies makes it look like a play on light and shadow. There's also the wild type, or green pristella which I am going to add soon, as well.