OK here it is, I've just come back off a 2 week holiday and I've just relised that my 4 neon tetras are about 5 years old going on 6 (you can tell as well)and, i've got some harliqwins (sorry about the spelling lol) and they are about 4 years old now, so the question is how long do tetras live for anybody know thier life expt?