Originally Posted by
crazie.eddie
I was looking to get another filter in addition to the 2128 on my 125 gallon tank. I've heard allot of negative reviews regarding Fluval from a planted tank forum I belong to, so I decided against it. In the same forums, I read some positive reviews, as well as a few negatives, with the FilStar, so I figured to try it out. I purchased the FilStar XP3 to run along the Eheim Pro II 2128. The XP3 pushes allot more water than the Eheim, but the XP3 slows down allot faster when it becomes dirtier, compared to the 2128. In a previous discussion, I compared both filters as Torque (Eheim Pro II 2128) vs HP (FilStar XP3). The FilStar may pull ahead with more GPH, but eventually slows down in the long run when it gets dirtier. I do not notice any type of slowing down with the Eheim 2128. Keep in mind, although I do have a GPH meter, this is only a visual test. But if you were here to witness, it is not hard how drastically the XP3 slows down in comparison to the Eheim Pro 2128.