I pretty much have a tetra tank. I have 6 serpae, 5 neon, 3 red eye, 2 rummynose tetras along with a few plecos and cories. I like the serpaes a lot, they add a lot of color to the tank and are often with one another. On the other hand, I don't care much for the red eyess because all they really do is stay on top in the back and come out when I feed them. Lemon tetras are nice, next time I go to my LFS, I think I will get a few.