Effects of Aquarium Color on Growth and Skin Color of Blue Gourami (Trichogaster trichopterus)
Keywords:
water quality, weight gain, specific growth rate, survival rate, skin colorAbstract
TThe color of the ornamental fish plays an important role in the acceptance of the buyer. This study examined the effect of aquarium color on growth and skin color of blue gourami. An experiment was undertaken using fish with an average initial body weight of 1.78 grams. Experimental fish were reared in 4 groups of aquariums with 4 different colors (a control group was glass aquarium with no color and the others were glass aquariums covered with red, yellow and blue corrugated plastic boards) in triplications with 5 fish each. Fish were fed on commercial ornamental fish twice a day, for 8 weeks. The fish with the highest average weight gain (97.08%) and specific growth rate (0.41 %/day) was found in the red aquarium but not significantly different (p > 0.05) from the fish in the other aquariums. Moreover, the fish in the control group had the highest average survival rate (86.67%). The paleness of fish skin varied with aquarium color - very pale skin was found in the yellow aquarium and dark skin was found in the blue aquarium. In addition, the skin color of the fish in the blue aquarium had the greatest similarity to natural fish. Therefore, use of the blue aquarium is the most appropriate for blue gourami culture.
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