Study on water quality variation mediated by microalgae in recycling water in aquaculture (Tilapia nilotica) tank.
1987
Thippawan Paesakoon
Water quality variation mediated by microalgae in recycling water in aquaculture (Tilapia nilotica) Tank was studied. After the total ammonia nitrogen (TAN) in the fish tank was about 1 mg/l, the one third of the water was transferred to an algae tank. The TAN decreased to 0 mg/l in 5 days with the first order kinetic rate, having the average rate constant -1.22206 day-1. Furthermore, alkalinity decreased and pH increased to suitable level. The recycling of water should be done every 11-12 days for tanks with stocking density 3.5-5.3 fishes/square m.
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