Firstly I'd like to thanks for letting me join this forum, I'm looking forward to learning from you all. I have wanted to have a tropical fish for years and now I'm finally in a position to. I have a 60l tank which I completed a fishless cycle with, I've had 4 black neon tetras/4 lemon tetras and 4 tiger barbs in now for two weeks. The local shop said they'd all get on fine which they do.