Hey all...Picked up on a new 120gal acrylic tank today
, got some questions about the overflow and new pump I bought.
The guy at my LFS
recommended a Mag 18 for my return pump, which I thought was cool but i've been doing some searches about closed loops and found some posts about overflows not keeping up with big pumps.
My overflow hole at the bottom of the tank is 1"id, is this gonna create a problem with sucking the overflow dry?
My current setup is on a 65gal. with a CPR Aquafuge Pro and a Mag 5 for return. I am also worried about the sump in the Aquafuge being sucked dry as well, it only hold about 2gal or so. The fuge does have a bulk head that is not being used, now could I plumb a line from the fuge over the top of a 20gal glass tank for extra sump capacity and use the mag 18 for return?
Also could I just use a ball valve on the return side of the mag 18 to choke it down?