How do you fix weak filters?

  • We are currently upgrading MFK. thanks! -neo

KIdfish

Exodon
MFK Member
Dec 16, 2014
134
12
23
Cali
Hi, i have a Sunsun 4-Stage External Canister Filter for about a month now. At first when i first set it up it was running good and the current was good for about 2 weeks then after i start seeing the amount of water that the filter pump out is weaker than before. Is there anyway to make it stronger?
 
Agree with Fuzzlebug, sounds like it is plugged with waste and the mechanical media needs rinsing.
Some filters can go 3 months, some 3 weeks, depends on your vacuuming, feeding and water change schedules, how messy your fish are, and even if you have plants, or not. Small snails can get in and impede flow too.
 
I have 2 sunsun 304b's and it's been running for over 7 months with no problems. Flow is still strong. Did you pack the media trays full? If all the trays are full it'll slow the rate down too. Like everyone else said it's probably full of waste and needs to be cleaned out.
 
i feed my fish twice a day and i net out all the extra food. i do water change once every week. i guess i can say my fish make a bit amount of wasted.

do i just need to clean how to filter and it should be fine? if there is something in the pump how do i open the filter head out?
 
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