Hi, new here , I am from Malaysia and I am here to find suggestions in this forum, I had a water fountain about 2.9 meters long with flowing water and bio filter , which fish do you think that i can keep ? Available fish from my friends are Imported wallago catfish , Pangasius nasutus , Platinum paroon shark , Iridescent shark , Yellow catfish (Hemibagrus Nemurus) , Malaysian Mahseer , Striped snakehead , Mad barb , amazon and asian redtail catfishes , thank you for suggestions , TQ