Tilapia is a freshwater fish, a kind of economic significance-and widely consumed, because there is a great feature, tilapia, suitable for aquaculture is raising its fast easy. Find a species easy to endure The meat has a taste of the market. In the countries of Thailand, tilapia can lay eggs in every season of the year may lay eggs, breeding up to 4 times, but nonetheless, farming, tilapia still experiencing problems during the summer, which is a common problem in people raising Tilapia in the farm are experiencing problems parents fish lay eggs. Rate of the hatch and lower survival rate from this experiment is to study the light from salaenphrang use 80% split into two sets of experiments, a series of experiments is a light material, with no mask, mask of light material in control. A series of experiments to compare each percentage to lay eggs and the egg's bushy finds from the experimental material light mask feature breeding Tilapia in a period of 3 months, found that the percentage of fish spawn by using camouflage to light materials. Percentage of 6.25% levels, spawning, 13.3% and 3.77% percent of spawning fish without using the mask of light material, with the percentage more than eggs laid by are at 14.25% and 12.50% 18.18%Key words: tilapia, camouflage material, light, hatching.
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