hi i am new but i wanted to know EXACTLY what i need to raise a silver arowana. my dad bought one for my 100 gal tank and it died.. water was at 82 degrees and the PH was at 6.8. my dad put it in there and it died in 2 days. it was the only fish in the tank also... just a solo fish that had died. please let me know exactly beacuse i dont want that happening ever again..