Scum

[camaroman]

there is a thin layer of film on the top of my aquarium water.
it is kind of white and when i feed the fish the food kind of breaks it up.
Does anyone know what this could be?

 

[BigC]

Probably just a bacterial bloom and will soon clear.
You can clear it periodically yourself by quickly dragging (once) a piece of kitchen roll across the aquarium surface. (Careful not to leave wet kitchen roll in there)
Alternatively direct a spraybar from a filter across the surface of the tank
Regards
BigC.

 

[Matty P]

You could also try pushing a cup/glass down under the water (right-way up) until the top rim is just under the surface, all the "scum" should flow into the cup. Keep repeating until you get rid of it. Kitchen roll and spray bars (water agitation) also work as BigC pointed out above.