Hello, new here. I've kept all sort of fish over the years including some monsters (Oscars, Birchirs, very big plecos etc) but I'm due to pick up my first Piranha. It's a Serrasalmus Marginatus and it seems very few people are keeping them which means first hand accounts of keeping them are hard to come by and there aren't many pictures or videos of them on the web either. So does here anyone here have one or maybe they've kept one in the past? Thanks.