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Discussion Starter · #1 ·
I'm curious what my GH is. Basically I have a 110 with about 100 gallon of water volume. I'm using mostly RO/DI water. To that, I add the following:

4 teaspoon of Equilibrium
4 teaspoon of Calcium Carbonate
2 teaspoon of Magnesium Sulfate
1 teaspoon of Potassium Nitrate
a pinch of Mono Potassium Phosphate (My tap water already has very high Phosphate)

Based on APC Fertilitors I will have the following:
15 ppm of Potassium
10 ppm of Calcium
4 ppm of Magnesium
8 ppm of Nitrate
About 1-2ppm of Phophate

My TDS meter reads about 150. So what's my GH?

I think my KH should be around 2 degrees because of the Calcium carbonate. I know I know, some of you recommend almost zero KH, but I have Amano and CRS shrimps. I think a little bit of KH is good for them. Plus, I don't care if my plant isn't growing super super fast. I'm looking for a well arounded and balanced water parameter that is good for my plants and inhabitants.
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