<a href=showthread.php?s=&postid=9646665#post9646665 target=_blank>Originally posted</a> by Shooter7
The suggestion was to try for a minimum of 30x volume flow. One option that I suggested that could get him into that realm would be a pair of Seio 820's, which would, indeed, get him into the 30x flow realm. Of course, this is not the only possible way to go as there are maxijet mods, tunzes, etc etc etc yadda yadda yadda. Myself, I would rather have flow on opposite sides of the tank as opposed to having one MJ mod blasting from one end. And no, you would not need 3 or 4 of them. 30x flow on a 55 is 1650gph, two 820's would give you 1640 gph. You could go higher, but I don't think at this point the guy is looking to create a hurricane in there right now.