Help with new 55gal equipment setup.

[jslmk4]

Hey All, I recently setup a 55gal tank that i want to eventually turn into a reef tank. It has been setup for about 3 weeks and has about 30 lbs of LR a tomato clown and a 3 stripe damsel from my previous tank. I have alot of oily film on the surface of the tank. My return and 1 powerhead create alot of surface movement so i dont think that is the problem. I'm running a sump with a protein skimmer as well. Im thinking the hob overflow might be the problem..so any thoughts on how to get rid of the surface film would be appreciated. Thanks John

 

[jslmk4]

Here is a pic of my overflow....my return is a Rio hf10 rated at 360 gph at 4 ft.....overflow rated at 300 gph.

 

[jslmk4]

Anyone??

 

[jslmk4]

Too challenging?