A protein skimmer is a device used mostly in saltwater aquarium to remove organic compounds from the water before they break down into nitrogenous waste. Protein skimming is the only form of aquarium filtration that physically removes organic compounds before they begin to decompose, lightening the load on the biological filter and improving the water's redox potential. Although the process of foam fractionation is commonly known for removal of waste from aquaria, it is, in fact, a rapidly developing chemical process used in the large-scale removal of contaminants from wastewater streams and the enrichment of solutions of biomolecules.

Protein skimming removes certain organic compounds, including proteins and amino acids, by using the polarity of the protein itself. Due to their intrinsic charge, water-borne proteins are either repelled or attracted by the air/water interface and these molecules can be described as hydrophobic such as fats or oils / hydrophilic such as salt, sugar, ammonia, most amino acids, and most inorganic compounds. However, some larger organic molecules can have both hydrophobic and hydrophilic portions. These molecules are called amphipathic or amphiphilic.

Protein skimmers are used to harvest algae and phytoplankton gently enough to maintain viability for culturing or commercial sale as live cultures.
UV act like a natural sunlight. * The UV lamp produces strong ultraviolet rays, which can effectively kill algae, bacteria and or ganisms in the water, and restrain the water from turning green or smelly, ensure your fish and plants healthy, keep the water crystal clear.

A UV sterilizer works in concord with other essential filters by eliminating nuisance green water caused by waterborne algae that can easily create problems and ultimately reduce filter efficiency.

* High efficient, energy saving, reliable, can solve the biggest water problem for aquatic animals and plants, can for whole-day using.
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