Fluval U1 Filter

[puffcandy]

Hi,

I've had one of these running in a little 50l tank but recently it's stopped creating bubbles. I know this isn't essential to a healthy tank but does anyone know what could be causing this?

Cheers.

 

[Fintastic!]

Do you clean your filter sponges regularly? Once a month I give my sponges a quick squeeze in tank water that I've siphoned during a water change and I notice the filter is stronger and bubblier (iykwim) after.

 

[puffcandy]

Do you clean your filter sponges regularly? Once a month I give my sponges a quick squeeze in tank water that I've siphoned during a water change and I notice the filter is stronger and bubblier (iykwim) after.

Thanks for the reply,

It's only been running for a month (with mature sponges) and I gave them a wee squeeze last week. I'll spend a bit more time on it during next W/C on Monday.

 

[puffcandy]

Ok fixed it

I'm using 50% mature sponge taken from another filter and 50% new. Turns out after my last rinse I wedged the sponges to tight and close to the inlet from the impeller.

All flow and bubbles now.