Hi, I am from the UK and have been keeping tropical fish for a long time, I have a 180 litre community aquariums with 3 shoels of cardinal tetras, rummy nose tetras and harlequin Rasbora tetras and 3 peppered Corydoras, I also have 2 40 litre aquariums with a male Betta in each, I have tried Rasboras with each of my Bettas but had to remove them as they are both very aggressive with other fish, chasing, nipping and flaring at every opportunity so there now in my community tank..nice to meet you all