Of the tetras I have, I like my longfinned black skirts the best. They seem to have more personality than the neons, although the neons are beautiful. Maybe its just that I've had my black skirts ever since I started- they were the first fish I got, and the only ones of the original crop I have left. My original platy died of old age, I think, and my original mollies died when the heater broke. I'm really attached to my black skirts- I can tell them apart, and they have names- Snaggle, Doodles, Funny Guy, and the Squirt.