surface scum

[reefer123]

i have a 12 gallon nano cube DX and the surface has a nasty looking scum on it.
is there anything i can do to make this go away??

 

[viper_930]

You can direct more flow up towards the top of the water's surface to wash the scum back down into the water column to be filtered out.
Or check this out: https://forums.saltwaterfish.com/t/169864/millmod-nanocube-surface-skimmer-v1-1

 

[masala4080]

definitly check out bobs surface skimmer. I have one and it works great.

 

[sw65galma]

What exactly is surface scum anyway?

 

[chipmaker]

Surface scum is undisolved solids and proteins that get separated from the water column and float to the top. LIve rock and corals as wella s fish make a lot of it.......Agitation of it by a powerhead will break it up, so it gets picked up lower in the water column by the filter, or a simple water change or add a surface skimmer or preotein skimmer (not always easy or possible with a small tank, in which case surface agitation or water changes would be best bet. If its not removed it can interfere with gas/oxygen exchange.