I should probably say this in a PM rather than risk getting forum slammed, but I have been very impressed with the Jebao MP 20s. Much cheaper than the Vortechs I used to run, which I was happy with until they became too loud for me to tolerate (I am very sensitive to sound, especially the up and down ramping sound the vortechs started making, so I realize my problem with them wouldn't apply to most aquarists). Anyway, the two Jebaos provide great flow (I have to adjust them down to about 50% on one side, 75% on the other side of my 6 foot, 120 gallon DT to keep my sand as a bed and not a cloud and to keep my 10 year old rose BTA bubbled and not spaghettied.) I know many would say my flow isn't a tenth of what it should be but here is what I used to have when I was just running one vortech 20 and one vortech 10, which was much less flow than the Jebaos provide:
In the spirit of full disclosure, I feel that while I was able to successfully grow SPS with that drastically less than average flow, I did not have universal success. The acros in my tank have never had great PE, I could only get one out of a dozen attempted millipora to survive and quite a few other acro frags I tried never survived the transition to my tank. So something about my tank selected out certain SPS to thrive while others died. Was it flow? You got me, but I thought I'd offer my suggestion so you could at least google search reviews on the Jebaos to see what experience others have had. I know this, for the same price you could get at least twice as many Jebaos as vortechs and blast the soft tissue right out of your euphyllia.