This experiment uses a transparent tank 100 litres of volume 12 of the supply water (34 ppt) in each tank will put an egg with Swan grouper density 500 eggs per litre. For this experiment, there are 3 sets of experiments is that there are no water change water 100 percent. 200 percent per day. These trials randomly throughout the planning. (CRD) 3 repeat each set of experiments Sampling every hour. To observe the development of the embryo and hatching of baby fish.
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