A big dream, I become holder of enough big aquarium he became genuine .Now and after the right processes i am very happy with the result.The choice of fishes became  to be compatible with  the kings of aquariums my loves Diskus.... After looking into what other fish will be ok with Discus water parameters, I chose to add some Rasbora heteromorpha , cardinal tetras, ,corydoras sp, Mikrogeophagus ramirezi, Mikrogeophagus altispinosa , Crossocheilus siamensis and a couple of ottocinclus. No problems at this point. The  Crossocheilus siamensis are kind of active but the discus hold their own during feeding and are not spooked by the Crossocheilus siamensis.