What's The Best Filter To Get

I have a 70 litre tank and the filter I've got in it keeps getting blocked any idea what filter to buy

 

Really love my fluval c2, also hear great things about aqua clear.

 

Really love my fluval c2, also heat great things about aqua clear.

Thanks I have a look in to one

 

I highly recommend Marineland Penguin Bio-Wheels. They're not loved on this forum but I have had nothing but success for 20 + years using them.

 

I really love my penn plax cascade canister

 

I like fluval ,I have a fluval 303 still running at this very moment over 20 years,its the old model though,but the new ones are still pretty good from what I was told