Bullet 1 or Tunze 9010

[Slick Fork]

I've got the tunze,

Absolutely love it. It skims better for me in the sump than it did in the tank, but I think Doug is having the opposite experience with his. Mine skimmed fine in the tank as well, just does better in sump for me! Very small foot print, when I had it in the tank I actually never noticed it, very quiet, very energy efficient. If you look at the tunze website, they give you a bit of a guide as to how they rate their skimmers... the 240 gallons is for a softy tank, I believe they say if you want sps than take 60% of the rated capacity and that's the new rating... but double check on that at their website.