I'm currently running a jaebo DC6000 on my 90 gallon, the thing is super quiet and puts out a lot of flow. No complaints at all on my end. The controller is easy to use and works well, because it is so silent, it is hard to hear the motor ramp up or down when you use the controller. I could have probably used the DC3000 for my tank, but only the DC6000 and bigger come with an intake guard for use as a return pump. I am using, though, a DC3000 as my skimmer pump and no complaints there either.