i've been feeding my fish with pellet and cricket but i recently start to feed them with market white shrimp, they start to get very aggressive, especially my silver arowana, he start to chase after all tank mate and bite. i have to move my 10" silver to a spare 10g for the safety of all the smaller fish. should I stop feeding them white shrimp or find a new tank for my silver?
You might get by for a little while, but it will surely die on you.
Maybe this is the problem. Maybe buy your arowana a 180 gallon tank?