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This is the reason why the condition in your aquarium, especially your reef tank, must be kept as stable as possible at all times. Even the slightest variations might stress your creatures excessive, which enable it to result in outbreaks in diseases or fatality, on account of there ability to handle parasitic attacks.Marine life forms usually are not as resilient his or her freshwater counterparts, especially stress from being brought home in a plastic bag, during shipping in containers while being transported, via one environment to a different one due to water alterations in different tanks. there are numerous other scenarios also.
The rapid development of air filters is closely related to the development of military industry and electronic industry. In the first world war, the use of various chemical agents, asbestos fibre filter paper as the smoke filter layer of military gas masks came into being. The glass fiber filter medium is used in air filtration to obtain a patent in the United States in October 1940. In the 1950s, the United States studied the production process of glass fiber filter paper, and the air filter was improved and developed. In the 1960s, HEPA filters came out; In the 1970s, the filter paper of fine glass fiber was used as the HEPA filter of filter medium, and the filtration efficiency of particle size of 013 micron particle diameter was 99.9998%. Since the eighty s, with the emergence of new test method, use evaluation to improve and to improve the filtering performance requirements, found the HEPA filter there is a serious problem, and he had a higher ULPA filter performance. Countries are still working on it and expect more advanced air filters soon
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