Abstract
Aquarium care is a kind of a hobby. Aquariums are filled in with various fish species, invertebrates, plants, so aquarium water contains a huge amount of impurities, bacteria and microorganisms formed during the life of aquarium inhabitants. Currently, there appear the new aquarium filters for water purification with new consumer properties. There are considered the ways of treating water in aquariums by using different types of filters in order to study their functional qualities. Six internal filters of different brands and 1 external one were taken as the objects of study, their technical characteristics being presented. The time parameters of mechanical purification of aquarium water from the bacterial film by different filters were determined, the time limits of which correspond to 2-15 and 168 min. The operating time of the filters was calculated up to the point of deteriorating the quality of water filtration, which ranged within 5-12 min for all samples; one filter coped with the task of water purification in 60 minutes. The period of filter operation until the replacement or cleaning of filter materials has been stated. The minimal result is 168 hours, the maximal - 504 hours.
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