Help! Mold on filter!

[Giant Danio]

I Was doing a water change on my tank and was going to clean the filter and there is MOLD growing on the filter and I don't know why can some one please help!!!!!!!

 

[Giant Danio]

Help!!!!

 

[ejaramillo01]

Help!!!!

I don't think that it is mold, just scrub the "gunk" and put the filter back. I can tell you that even is a good sign, meaning your filter is holding a loot bacteria on it ( the good bacteria )....
Nothing to worry IMO

 

[Giant Danio]

Ok will do!
Thanks