Hello! I have been all over the internet doing research, so now I am weighing in on a forum where people actually keep fish and should have some practical advice.
Here is my 75 gallon freshwater (it just celebrated its 2 year birthday):
9 zebra danios
9 black widow tetras
6 serpae tetras
As a newbie who loves anything tetra-y, I'm just wondering...
What is the hardiest tetra you've ever owned?
As if you didn't know that was coming after reading the title.
These could be fish you've cycled your tank with, a fish who has survived ich, fin rot, and flukes at the same time, etc...