Persistent biofilm

[Pamperedfish]

Seems to be a small tank, use a paper towel to skim the surface and then get some more agitation.

 

[James CNM]

Hey James,

How about having some respect and actually help out rather than making smug comments.... "mate"

I do have respect, I was only saying that all i could see was the colour blue, i couldn't see any clarity?
Had the flow been switched off then the pic would speak for itself ie Bio film present?
The topic after all is about surface biofilm. I'm not being smug. It's a forum and open to dabate