I will look into that, my LFS is kinda shady, the owner is feeding me BS all the time but I guess it wouldn't kill me to ask. Thanks
It is just hard for me to imagine 18 gallons of water a minute passing through a 30 (or 40 gallon) tank without fail. In addition, I have read that pumps are not made to run 24/7/365, doesn't this pose a problem?