The do cut the flow rate quite a bit as well. I ran one on a MJ1200 for awhile. Worked fine. Not sure how good it would do on a little ph
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,