Salt and film ?

[hardparts2]

My 55g has been running for almost 2 months now and I have trouble with surface film. I am running a coralife 125 super skimmer and 2 Seio 620s and a aquaclear 50 power head there is good flow and surface aggitation but it is still there . I have done several water changes and its still there. I use a 16 gallon rubbermaid container for water changes. I fill it with ro/di water add salt and let it run 2 days with a power head and heater and make sure it is the same as tank water.I have noticed that when I take the cover off the container for the water change there is a brown film on the bottom of the cover from the air bubbles popping in said container. I asume that there is some thing in the salt mix that could be causing the film, could this be my problem?I am using IO Reef Crystals but I am thinking about changing to something else for salt can I do this?

Thanks Bob

 

[ChrisRD]

The film is not uncommon in tanks that have no form of surface skimming, a poor skimmer, poor surface agitation, etc. If you have good surface agitation that narrows it down to the first two IMO. Does Coralife make a surface skimmer box for that unit?

 

[Sponge_Bob]

An Aqua-Clear 50 or 70 HOB filter hooked up with the surface skimming add-on would probably help you. Also, you might want to run some top quality poly wool in there to polish your water. Furthermore, if you ever need to run some carbon for whatever reason, you will have the means to.

HTH