I am so New at this and i really need some help!! I have dont know why i checked my water and Nit 0ppm/high range ph was 8.4 amonia was 0ppm my temp was at 80C everything was fine I was doing my water change and re aranged my tank and he was acting a bit odd i sat there and watched then i took him out of the tank he was barly breathing i knew he was going to die I just wish i knew Why? Dose anyone know alot about these fish are they hard to keep? most of my fish are cichlids and 2 brisle nose pleco and chines algie eater 3 silver tip sharks the vampire pleco was my favorite one im still devatated over loosing him i just want to know if it was something i did that made him die?