Asian Journal of Biology

Eco enzyme is a result of organic material fermentation containing active enzymes, microorganisms, and secondary metabolites that have the potential to improve digestion and nutrient absorption in fish. The aim of the research was to test the effect of adding eco enzyme at varying doses to commercial feed on the growth and survival rate of Climbing perch fry. In addition, this study aims to analyze the quality of feed supplemented with eco enzyme and water quality over a period of 30 days. This research used a Completely Randomized Design (CRD) consisting of four treatment groups and three replications, including a control group (without eco enzyme) and three experimental groups that added eco enzyme at doses of 2, 4, and 6 mL per 100 g of feed. Climbing perch fry (3-5 cm long), weighing between 1.27 and 1.72 g, were raised in aquariums measuring 30×20×25 cm, with a stocking density of 10 individuals per aquarium. The results showed that the addition of eco enzyme with a dose of 6 ml / 100 grams of feed was able to increase absolute weight growth and SGR values ​​and reduce the FCR value of feed. The survival rate in all treatments reached 100%. Proximate test results show an increase in the nutritional quality of feed with the addition of eco enzyme. During the rearing period, water quality parameters such as temperature, pH, dissolved oxygen (DO), and ammonia levels are within a suitable range for the survival of climbing perch.