So ive just aquired a saratoga Leichardti Australian arowana. $160 cash. He is in my small dog tank at the moment. I need every bit of information ever known guys. If you feel like you have input please go right ahead.. aquired 3 hours ago ph is 7.3 - 7.4 dont know GH. Temperature is 25deg. Tank 250ltr. Then 330ltr then there is a 500 ltr for him. all tanks well established. Larger tanks are more acidic though so ill need input on what to decor those with instead of ph lowering driftwood. I need all knowledge ever known. I dont like my fish in just whatever i give them i mould the tanks around there needs.