i bought a second hand unused xp4 (boxed as new), i have set it up and its really quiet compared to the 2 external fluvals i had running, i done a search on the xp4 and people keep saying they have heard bad things about them, please tell me what these bad things are that other filters dont suffer from, so far i think its a better bit of kit than the fluval 205 and 304 i just removed.
oh its so quiet
my only gripe about the fluvals is the noise they make, i had their external filter years ago and quite often they were noisy, hard to remove trapped air and the motor rattled on and off, the new ones are the exact same, they have made many improvement from the older external filters yet the noisy motor and trapped air is still a problem with them .
oh its so quiet
my only gripe about the fluvals is the noise they make, i had their external filter years ago and quite often they were noisy, hard to remove trapped air and the motor rattled on and off, the new ones are the exact same, they have made many improvement from the older external filters yet the noisy motor and trapped air is still a problem with them .

