I have always thought they were beautiful, especially in a discus tank, but have always been a little hesitant to buy them because they are so sensitive to water conditions.
I have four brilliant rummy nose tetras with angels...... they love same conditions as angels (been researching), with just these two fish you can keep your water temp rather high and they do pretty well.
How large do they grow? I presume they're shoaling fish?
rummy nose teras can get 2-3in
I have just four and they are very happy..... always in their little gang.