I think it really depends on which specific filters you are comparing.
for example, the Fluval 04 series have a not so hot reputation out there compared to the Rena XP3 and the Eheims, BUT the Fluval FX5 has an excellent reputation.
on the other hand, the Rena XP4's have not so good rep.
I think that if you go with either a fluval FX5 or a Rena XP3 you can't go wrong.
however, other filters from either brand? buyer beware..
for example, the Fluval 04 series have a not so hot reputation out there compared to the Rena XP3 and the Eheims, BUT the Fluval FX5 has an excellent reputation.
on the other hand, the Rena XP4's have not so good rep.
I think that if you go with either a fluval FX5 or a Rena XP3 you can't go wrong.
however, other filters from either brand? buyer beware..
