The FAQ section has your answers....[] ...Okay, Singapore's water is pretty low in KH...usually less than 1. Did you add any baking soda or KH plus stuff to the water? If you did not, that explains it...add some baking soda and bring the KH up to 3 - 5. Do not raise it more than 2dKH per 24hours as it might stress your fishes due to the subsequent increase in pH along with the KH. 1 tsp of baking soda raise about 4dKH for every 50litres of water.
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