House hunting, so not checking every 5 hours (the usual me !!)
Very interesting conversation guys! makes a lot of sense.
Biollante - If you guys are rude , the world is a much better place. Your sense of humour jibes so very well with mine . I do agree that this seems to be a bacterial biofilm. I changed the feedind, by removing any live/ oily feeds, fed by placing food underwater - no avail. ( it did become less though)
However since Ive increased CO2 to have my indicator turn a nicer limey green ( more like http://en.wikipedia.org/wiki/Persian_green) the film has started to recede!
We deal with a lot of bio film, quite often while removing Foley / implanted blood line catheters the thin slimy coating inside is a noxious cocktail of a bacterial bio film. In fact biofilms may have been a deciding factor in helping early live survive in the early days of evolving life.
And I do belong to the half-part of humanity that prefers to hang out here, so I guess it adds one more feather here.
< going to try to see how much biofilm i can grow - - - - - NOT.>