les
DIY Freak
I was asked to build a prototype dual stage skimmer. Here is what I came up with for my tank. After a week in operation I must confess that this monster works awsome. The overall size is 77" tall, mixing box is 24x14x31 tall. I drive the air in with a piston pump (80watt) and have used the sweetwater ultra fine stones and am now trying the 9" standard stones. This thing processes about 9 GPM as seen from the flow meter. I also have a flow meter on the air line and it runs about 125 SCFH with the 6" untra fine stones and about 180SCFH with the 9" mediums. (SCFH stands for standard cubic feet per hour)