1. Hoʻomaʻemaʻe wai wikiwiki: Hiki iā ia ke hoʻoheheʻe koke i ka amonia, nitrite nitrogen, hydrogen nitrate a me nā mea metala kaumaha ʻē aʻe, wehe i nā mea ʻala, a hoʻomaʻemaʻe i ka wai.
2. ʻO ka moʻomeheu bacteria wikiwiki: hiki i ka nui o nā hale microporous kūloko ke hoʻonui pono i ka nui o ka oxygen dissolved i loko o ka wai a hāʻawi i kahi wahi hānau maikaʻi no ka nitrifying bacteria.
3. ʻO ka adsorption maikaʻi: Hiki iā ia ke komo koke i nā feces iʻa, koena, a me nā mea ʻē aʻe, decompose a hoʻomaʻemaʻe i ka wai, a laila e hoʻonui ai i ka palekana o ka iʻa.
4. Hiki i ka wai maikaʻi: hana maikaʻi i nā molekala wai, hoʻoikaika i ka decomposition a hoʻonui i ka ʻike oxygen i loko o ka wai, hoʻomaikaʻi i ka ʻōnaehana microcirculation, a hoʻoikaika i ka metabolism o ka iʻa.5. Kiʻekiʻe wela sintering: pōhaku lua pele, lāʻau lapaʻau pōhaku a me ka fluorite ua sintered i kiʻekiʻe wela, waiwai i loko o minelala a me ka trace mau mea, i conducive i stabilizing PH waiwai a me ke kaulike wai maikai.
