What Jebao RW series would be good for a 40B?

[heathlindner25]

Have you tried the RW's yet, oh man they are so much nicer. I still have my original WP 10, it's in my sump now, it still works very well. My WP lost a lot of power over time so i upgraded to the RW, it is powerful but the controller is way better.

I own many of them and installed quite a few ,I just think they're too big for 40 breeder and I love the little 25..... still can't turn them up past 1/2 power

 

[JamesHolt]

I have two RW-8 in my 40 breeder running around 40% in W1..
I have tried just one but it tends to pull all the sand to one side..
I tried one WP10 but it didnt have enough flow, Two WP25's give two much flow..
Mine did better with two of the little 525gph Hydors and a wavemaker, thinking of going back to them..