Film on water surface.

[jead85]

I am having trouble with film on my surface, its a standard AGA 75 gallon with an overflow offset slightly to the left. The film is built up mostly on the right side with some on the left. I have two MP40's for flow.
I originally thought that if i aimed my return down it wouldnt be pushing water to the sides but this has not helped.
Any suggestions?

 

[lilrobb]

I put a Koralia on the bottom back, pointing upwards...

 

[jead85]

i'd really rather not... kinda kills the point of the vortechs :-/
I did have it setup that way but.. im hoping for something less obtrousive

 

[combativeapologies]

I have the same tank and same problem so gladly tagging along!

 

[cbj25]

LilRobb;611855 wrote: I put a Koralia on the bottom back, pointing upwards...

If not that some sort of surface skimming device or something that will agitate the surface

 

[ralph atl]

raise your vortech's? power them up more?

 

[jeffmuse]

I just point one of the returns strait up so that it disturbs the water's surface... this gets rid of the majority of the film.

I am not sure what causes this, but I feel like it started when I began using Sea Chem Salinity as my salt mix. It may just be a coincidence though.

 

[darcurr]

you could increase the size of your return pump. More water cycling thru the tank and sump would increase the flow thru the surface skimmer, and thus reduce surface funk

 

[jef4y]

I have my return above the water line, breaking the surface of the water as it brings sump water back up. Seems to work well for me.

 

[thbrewst]

JeF4y;611984 wrote: I have my return above the water line, breaking the surface of the water as it brings sump water back up. Seems to work well for me.

I have something similar as well. One of my returns is pointed at the mount for a Koralia. It causes the return flow to 'bounce up' a little bit which ripples the surface of the water. That plus the general tank circulation gives me plenty of surface movement. I've never had any film. This is in a 175 bowfront, btw.