Sponge Filter

[TATTIESCONE]

Hi folks, Can anyone tell me how often they would clean a sponge filter in a tank with about 30 yellow lab fry. Tank and fry look fine, When feeding crushed flakes the powder if not eaten mostly lands on the sponge filter(filter type lies horizontal) just worried a build up might affect the water conditions.

 

[justjon]

Best thing to do is do it with every water change, and even inbetweeen.