Got this bad boy last night and I was just blown away at the amount of flow these things can make . I have one upstairs on my 90 that I may just turn down after seeing what this thing can do in a 210 . I set it at its lowest setting and it still created a gyre all the way across 6 ft , down 30 inches back the 6 ft and up to the powerhead . and the flow is gentle , but strong . hard to explain . I ran it at each setting for 4 minutes each time all the way to 10 . this baby replaced 3 powerheads . I may get one more for my SPS tank , and call it a day . I will try and post a video later on
