Add the last rotkiel, the jag, all convicts except the biggest male and a GT. The bigger GT's look ok, the Oscar is ok, pleco and silver dollars show no signs of anything. None of the fish showed outward signs of disease except some reddening around the gills. Parameters still show fine. Just did another big water change, added melafix and increased circulation. This sucks that all these fish are dieing off, that I don't know why, and that I'm talking to myself.