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Recently really too busy to take care of the tank, until everywhere seeing the black brush algae, since yesterday I had some times to clean up the drift wood & did some trimming works too. But recently at my place has cooler weather, so the water of the tank get very low temperature at 23~24 degree Celsius, and first time I see my tank so cold. When early in the morning at 23dC, until all lights on at noon only 25dC, the best temperature for plants to grow and the shrimps also very active.