I've got a 20 gallon long tank, with a height of only 12" and I'm running into issues with surface scum at one end of the tank. Because of the shallow depth, I have been unable to find a surface skimmer filter inlet than fits around my hardscape and because of the length of the tank, I can't get enough surface agitation from the outlet to break up the surface film consistently across the whole length of the tank. I'm currently rocking a lily pipe.
I'm more interested in what potential causes for the surface film might be, and any way that individuals have managed to reduce the production of the surface film in the first place so that I can get a better gaseous exchange in my tank. Anyone have any tips or suggestions?
I'm more interested in what potential causes for the surface film might be, and any way that individuals have managed to reduce the production of the surface film in the first place so that I can get a better gaseous exchange in my tank. Anyone have any tips or suggestions?