I am so annoyed that I bought my new Fluval 104 before these filter threads got posted. I would have gotten something else. At least its the cheaper 104 so I won't feel too bad in replacing it later.
:well the cascades as i have said before are way better than these eheim things. But for a thirty gallon you'd be better off with an aquaclear 500 :and buy it from the internet not froma store. :they are almost twice as expensive at pet stores. :