I'm considering transition from a whisper HOB to a cannister filter. I go to one LFS that recommends Eheim and the next says Fluval, which is it? Are Fluval filters just as good for less....please share your thoughts!
Eheim was the first in the game, but they're both good brands, as is Rena. What size tank do you have? Maybe someone can make recommendations on a specific cannister based on your tank.