The use of Cypress and Pine Flowers as Biofilter Media for Degrading Ammonia, Nitrites, and Nitrates in Comet Fish Rearing Badraeni, Syafiuddin and A. Ikhwan
Department of Fisheries, Faculty of Marine Sciences and Fisheries, Hasanuddin University
Abstract
Abstract. The comet Carassius auratus is a type of fish that is quite popular as an aquarium ornamental fish at home and can be spawned naturally. To get good comet fish fingerlings, it is necessary to feed it with high protein, but it has an impact on increasing the concentration of ammonia in the rearing medium. Application of recirculation systems and biofilters can degrade ammonia. This study aims to analyze the utilization of Pine Flowers and Cypress Flowers as biofilter media to degrade ammonia, nitrate and nitrite in Comet C. Auratus fish farming. The research was carried out on a laboratory scale using plastic bottles as filtration media containers containing Pine Flowers, Cypress Winds and Bioballs, as well as cotton filters to filter leftover feed and faeces before entering the reactor. Giving pellet feed with a dose of 5% of the weight of the biomass. The results showed that the Pine Flower Biofilter was the best biofilter of other biofilters, only separating 0.049 ppm NH3, 0.162 ppm NO2 and 3.309 ppm NO3 in cultivation media compared to 0.101 ppm NH3 bioball, 0.487 ppm NO2 and 3.107 ppm NO3 and 0.110 ppm NH3 pine wind. NO2 0.426 ppm and NO3 3.149 ppm. The biofilter used showed no difference in growth, survival and NO3 content.
Keywords: Biofilter Media, Comet Fish (C. auratus), Pine Flowers, Pine Flowers, NH3, NO2, NO3
