basic info about skimming from the web
A protein skimmer is a filtration device that removes undesirable proteins and other organic residue present in the water before they start decomposing to become harmful and toxic nitrogenous waste like ammonia and nitrite. Skimmers are relatively simple in design – it comprises of a glass chamber to store a column of water, a bubble generator and a waste collection compartment.
Why Use a Protein Skimmer?
When a skimmer is installed, streams of bubbles from a bubble generator are injected into the water column to create a huge water/air interface. This interface draws in most of the undesirable organic molecules because of their hydrophobic (water-repelling) nature. This accumulation of organic waste continues till the water/air interface gets saturated and foam formation starts. The foam carries the gathered waste to the top of the water column, where it gets transferred into a waste collection cup and removed by emptying the cup. Therefore, a protein skimmer is also known as a foam filtrator.
What a Protein Skimmer Does
Other than getting rid of organic wastes and residue from the water, a protein skimmer also does the following:
- Remove some inorganic impurities like phosphates.
- Remove any toxins released by corals or invertebrates present in the aquarium.
- Ease the burden on the biological filter.
- Restricts algae build-up and removes bacteria.
- Increases the oxygen level in the water.