ok considering now I can get a bigger tank, i had the option of getting a reef ready tank or just a normal glass cage tank. I Decided that i wanted to go with the reef ready considering it comes in a package with sump canopy and stand. But I from the overflow format for the filter of the tank.. I was a bit confused. According to the LFS they said that the water flows from the top of the tank, pouring water into this smalll bucket like thing then the water is channeled into the sump and back out. But Here was my concern. Since the overflow water intake was ON TOP of the water andbelow the water Level in taking water... what are the chances the Arowana will do the same? Isnt it possible for the arowana to get pulled into the filter's intaking current?