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I have a 18gallon with c02 setup freshwater tank. As well, I have amano and cherry shrimps in here and finally tested for gh and kh both had a reading of only '1' - yikes.. a bit on the low side?

I was given a container mixture of calcium, chloride , magnesium, sulphate, and pottasium sulphate. I heard i can use this to increase the gh. And that I can use baking soda to increase kh.

my question is how much of this do i dose? and do i dose after my weekly water change? I'm scared of messing up my TDS for my shrimps.

Any help would be great.
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