Filter Issue

[Alichae]

I'm new to this fish thing and learning all the time. 
I remember my filter running faster and a few days ago after an algea insident last week. 
I think i've got all the algea under control and have cleaned to filter and checked all the parts.
But I only notice a bit of water being filtered, not the big flow that used to come out of it. 
I'm afraid the fish may not be getting enough oxygen if it's so slow. 
 
I took it to the fish store and they told me either filters work or they don't. But I have a hard time believing that. 
 
Any ideas? Thanks! 

 

[ythao01]

I'm guessing you have a HOB filter. check if your intake tube is clear of junk and if your spinning part is on the right way. also fill the back of the filter completely.

 

[jeffadams]

one of my cheap filters was bad for this. there are often small holes that water must pass through that get clogged very easy and can be a pain to clean out. took the 2 good tries to get it clean enough to get the flow back. At times, the impeller casing and all the parts around it need a good cleaning.

 

[Alichae]

I'm not sure what an HOB filter is, but mine is a Whisper 20. 
Checked again and all seems clear. the impeller and all parts are clean as well. 
Are the fish in danger, should I go buy a new one. It's been 2 days and no one looks stressed out.