Abstract
Feed is an important factor in fish rearing. Basically, the feed given must be easily digested and have high nutrition. In fish farming, especially ornamental fish, natural feed is one of the supporting factors in the success of ornamental fish farming. Daphnia magna is one of the commonly used natural feeds for freshwater fish. Additives in the form of carophyll have the main composition of synthetic coloring materials, which are dominated by free astaxanthin (free astaxanthin) which can improve the quality of color in freshwater ornamental fish. The main parameters observed were natural food culture techniques, harvest and post-harvest, Damoph production process and the effectiveness of Dampoh on improving the color quality of freshwater ornamental fish. Based on observations made every week for approximately 2 months, the color brightness level of Albino Full Red guppies is getting brighter.
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