So I had the typical problem of my HOB filter being a little too powerful and creating a stronger current than I wanted so I went to the soda bottle trick and it worked great. Now the problem I am having is since I lost some surface agitation there is an rainbow oil like film on the top of the water. It is not thick and skin like like a protein film is, it looks more like a very thin oil (most likely fatty acids from the food).
Would an airstone help get things moving and break it up?
Since I have sand substrate would I need a suction cup type of air wand so it does not kick up the sand and have it end up in the filter?
Would an airstone help get things moving and break it up?
Since I have sand substrate would I need a suction cup type of air wand so it does not kick up the sand and have it end up in the filter?