film on top of water

[b4rrett]

hi all,
I have a 67(imp) gal tank with a inbuilt filter with the flow upwards agitating the water along with 2 mj 900 power heads which one of them is also pointing upwards. i have 40kg of live rock and a prism protein(hangon) skimmer. the tank has finished cycling over amonth ago and i only have a yellow tank and 2 juvi clown fish. now the problem is if i look through the tank at the top of the water with the light on i can see a white film on top of the water. if i siphon it out with a jug it comes back within a few days. when i siphon it the water in the jug looks slightly cloudy with green floating bits in.
what exactly is it and how do i resolve the problem.
Many Thanks,
GB

 

[seasalt101]

ok i do not know the metric system for starters but the film on the surface just aim a powerhead or two at the surface agitate the top and let the skimmer pick it all up for you, i as stated do not know how many gallons your tank is but it sounds small for a yellow tang...tobin

 

[biotank14]

YOU NEED CURRENT AT THE TOP OF THE WATER THATS YOUR PROBLEM....THATS EASY TO FIX MOVE A POWERHEAD TO THE TOP OR JUST AIM IT...

 

[miaheatlvr]

Originally Posted by B4rrett
hi all,
I have a 67(imp) gal tank with a inbuilt filter with the flow upwards agitating the water along with 2 mj 900 power heads which one of them is also pointing upwards. i have 40kg of live rock and a prism protein(hangon) skimmer. the tank has finished cycling over amonth ago and i only have a yellow tank and 2 juvi clown fish. now the problem is if i look through the tank at the top of the water with the light on i can see a white film on top of the water. if i siphon it out with a jug it comes back within a few days. when i siphon it the water in the jug looks slightly cloudy with green floating bits in.
what exactly is it and how do i resolve the problem.
Many Thanks,
GB
Just built up proteins, will disapate in time and the pointing the powerhead will help and should removed in time via the protein skimmer.