wtt tunze 6101 for mp20 or mp40

the 6101 i have is in excellent condition, its just a little too powerful for what i had in mind, i havent  made any progress with diy controller with it as far as a plug for the variable speed port on it goes, but it would work fine with a tunze controller. you could use it as a constant stream too. it is 3000gph and comes with tunze magnet holder.
i would like a  mp20, but an mp40 would work. i would also consider trade +cash so you can pick up a tunze controller