Are there any alternatives to Penguin Rite-size C cartridge filters?
They seem to really suck at filtering. After only a couple days it seems like the water is backing up behind the filter because it wont pass thru it. I hardly feed the fish any food so I know I am not the cause. Maybe the whole filtration unit is bad?
What kind of and how many fish do you have? The tank size would help too. I know that in a tank that has been running for a month or less, there will be more sediment trapped by the filter and that happens fast. It is ok to take the filter out and rinse

Unicel SC3-SR100
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