I have been keeping aquarium fish since 91 and every time I have attempted to keep an arowana they have all died prematurely.I only like the Jardini's and over the years there have been five attempts with the six incher that I just lost being number five,this morning everything was fine I fed him raw shrimp chunks as nomal and then I went on some erands,well when I got back I went to do an afternoon feeding and I didnt see him in the tank at all so I searched the floor hoping that he recently jumped out and could be saved.The fish was nowhere on the floor so I looked at the two inch space between the back of the tank and the wall the tank sits up against and dammit if the fish wasnt wedged back there.the tank has a basic hood/light combo with a small hole in the back for gas exchange,the filters take up all the other space but somehow he managed to aim and jump through the small opening.I have no clue what could have spooked him,he lived with a smaller peaceful redtail barracuda and a small indo dat,far from rabble rousers.My apology for the chapter and verse but I have nowhere else to vent.To add to the misery my wife goes on and on about how gas could've been bought with that money.