Protein Skimmer for Saltwater

thingiverse

Made this for my nano reef tank. 3 Parts so it can easily be printed on smaller printers as well. The bottom part has a hole that fits a standard air hose, pull that one trough and then attach an air diffusor on the other side. The holder are tank specific for my fish tank and might need modification. But the Skimmer has also 3 loops along the side, so you can come up with something completely different, e.g. using a string and a counter weight. The height should be adjusted so that the skimmer cup barely touches the water surface. Regulate the airflow so it doesn't create too many bubbles .You want the skimmed solution to be dark brown to black. Not some yellow or clear stuff that means its running too wet. I recommend only using PETG as its safest for the water if used for a fish tank. I added an alternative version for the middle part (SkimmerB2) that has a longer return pipe to create less micro bubbles. In general, the more airflow the more micro bubbles but also the better skimming. I might make a version in future that gets completely rid of them. But as of now I don't mind the optics in my tank and if you have a separate sump its not an issue at all.