Fluval fx5 micro bubbles

[Bayyak403]

I have cer media bio filter media in it can that make it happen and when I put It lower the output valve to half It seem like no water is coming out but it does stop the micro bubbles

[dino]

I would guess a small leak in a gasket or o ring

[GQsmooth]

Grease the lid O ring, or try cleaning/replacing the filters.

[Bugger]

Some times pumps create cavitation. Can you control the amount of water that flows threw it. Maybe try reducun flow

[Bayyak403]

Thanks I didn't even have a o ring for the lid and the purge valve was leaking very slow

Thanks guys appreciate it