I was never expecting these type of replies! This info is GOLD!!!! Howcome these tips never show up in a regular " i got this milky filmystuff post"
-Anyway, I get filmy scum as soon as a day later as soon as my spray bar becomes submerged. For those people using surface skimmers(Brotherd), can you attach something like that to a cannister filter w/o sucking in a bunch of air? - or do you have a secondary chamber...
So, heavy gravel debris = increased chance of filmyscum? -in an established tank!? Time to get out the python!