The Firsle FD series aquaculture equipment aquarium protein skimmer is a key equipment used for aquarium maintenance, especially in seawater aquariums. Its main function is to remove dissolved organic matter and suspended particles from the water body through physical methods, especially those large molecular organic matter that has not been decomposed by biological filtration systems, such as proteins and other nutrients. In marine aquaculture or coral reef ecological tanks, excessive organic matter can lead to water quality deterioration, affect the health of ornamental fish and invertebrates, and may lead to the outbreak of harmful algae. Protein separators can effectively reduce the organic nitrogen load in water bodies, helping to maintain good biochemical balance and stable water quality conditions in aquariums.