Gouramy is known to it’s low appetite and slow growth. Attractants are ingredients that are mixed in small amounts of feed to increase feed intake, growth, and fish consumption of feed. Garlic contains at least 33 sulfur components that give a distinctive odor and various medicinal effects. Turmeric contains essential oils composed of monoterpenes and is an effective odor stimulating precursor compound used as an attractant. This study aims to determine the effect of giving turmeric and garlic extracts at different doses on feed consumption, feed efficiency and feed conversion ratio in gouramy. This study used an experimental method with 5 treatments; P0= control, P1=1% garlic extract addition, P2= 1.5% garlic extract addition, P3= 1% turmeric extract addition and P4= 1.5% turmeric extract additions with 4 replications using 10 fish in each.. The results showed that the highest feed consumption value was in the treatment of P1and P2, the lowest conversion ratio and the highest value of feed efficiency was found in the treatment of P2 and P3. So it can be concluded that the addition of 1.5% garlic extract or 1% turmeric extract is effective as an attractant and effective for increasing the growth of gouramy.

Grouper fish (Epinephelus sp.) is one of the superior species in the development of marine culture in Indonesia. In the cultivation process, one important factor that must be considered is good water quality. Diseases that attack fish are caused by the interaction between environment, pathogen, and host. One of the pathogenic agents is parasites, and the ectoparasite that infects cantang grouper is Zeylanicobdella arugamensis. This study aims to determine the correlation between temperature and intensity of Zeylanicobdella arugamensis in cantang grouper. The method used in this research is a survey method by measuring pond temperature and calculating the intensity of Zeylanicobdella arugamensis from 50 samples of cantang grouper in cantang grouper at 4 ponds. The results that have been obtained are, temperature: 28°C (pond 1), 29°C (pond 2), 30°C (pond 3), and 31°C (pond 4). While the intensity of Zeylanicobdella arugamensis found were: 18,66 individu / fish (pond 1), 10,7 individu / fish (pond 2), 7,1 individu / fish (pond 3), and 4,6 individu / fish (pond 4). Results of the correlation analysis showed a very close relationship between temperature and the intensity of Zeylanicobdella arugamensis in cantang grouper with negative correlation coefficient value is r = −0.964 (p <0.05).

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Grouper (Epinephelus sp.) is one of the superior species in the development of marine culture in Indonesia which has high economic value and has become an export commodity. One of the factors that influence production results in aquaculture is feed. Good quality of feed is crucial for fish survival and growth. Therefore, the feed given to cultured fish must be able to meet all the nutrients needed. One way that can be used to improve nutrition in feed is enrichment. This study aims to determine the enrichment of feed on the growth of cantang grouper by addition multivitamins to the feed. Cantang grouper reared in two floating net cages; one is given artificial feed without enrichment and the other one with multivitamin enrichment. The multivitamin dose for enrichment is 0.3%. Sampling was carried out by measuring the weight and length of 10 fishes every seven days from each floating net cage. The growth of cantang grouper which was given a multivitamin enrichment in the feed showed a growth rate 2.53 grams/day, length of growth 0.055 cm/day, feed efficiency was 29.4% higher and FCR was 3.4 lower compared to the grouper without enriched feed.