guys my silver arowana is probably going to die and i would like to know if anyone knows why i believe it was fin rot after a serious trauma wich was caused by his tank mate a 6 inch oscar but all i know is the oscar beat the living daylight out of him and after that he pretty much stopped doing anything and all his fins started to rot away but can i get any idea on what else it could be ps. the water was perfect execept it being very hard
