Film on water ?

[snoopdog]

Just ths week I have a film on the right side of my tank, never had one in my tank. I threw some carbon in the sump just in case. I have a ton of circulation and a side over flow. Blows my mind how I could even have it when the water is pulled from the top. Any ideas guys ?

[icemark]

what color? is it on the surface, or rocks or side of the aquairum? what are your water paramiters?

what changed to cause this?

how long has the tank been set up?

[fishguy_8]

if its brown/yellow i'd say its a protein slick.....very easy to cure.....take a power head point it STRAIGHT at the top....let it work for 2 days....bodda bing its gone. i had the same thing a month or so ago on my 10g tank and thats what i was instructed to do by the people here and it disappeared....
Jon