i ve been testing parameters in my tank and always get a ph of 5 and a kh value of 0 drops(water never does the first color change) gh is 8, what can i do? i have some plants, and been adding co2 as a home made reactor and also just started ussing seachel flourish excell, what can i do to get a better kh value, should i be worried? fishes seem to be doing fine, it´s been like this for about 4 months