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  1. Betta Fish Care
    I tested the water of the shower/bath: 9 KH 7 PH <0,01 mg/l NO2 but: 30 mg/l for NO3 :/ And also our rainwater: 2KH 6,5-7 PH 0,2 mg/l for NO2 :( but: 1 mg/l NO3 Now my question is: which kind of water should I use? I have blue fairy, bumblebee and cherry shrimps in one tank and one betta in...
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