I'd just get a KH test kit.. I had no idea you could multiply your GH by blah blah to get kh.
Either way, you could try taking a fraction of your tank water, say 1 gallon, test its parameters, and then try a 1/4 teaspoon of Epsom salts and test again to seee what happens.
I already have the GH test, it arrived today and I already have a KH too.
A bag of shells, coral, limestone is all you need in your filter or better yet, use it as a substrate like the reefers.
A lot of people say that it becomes useless when it becomes covered in bio-film because the water is no longer able to reach the calcium and leech it.
The measurement you're talking about has nothing to do with KH in case you were wondering, and you can't convert GH to KH.
I know, I'm not the one that said that.
That value, mg/L as calcium carbonate, is one common unit of hardness. It's because the test doesn't sort out how much calcium and magnesium you have, it only measures the combination of the two and gives the result as the standard value of CaCO3. So if you made a solution with the given concentration of CaCO3, it would have the same hardness as your water, regardless of the Ca/Mg mixture of your water.
I'm not sure that I understand this. Testing the water right out of the tap will get the same results testing it after I add the cichlid salt?
Calcium in the water will raise hardness and pH which is good for snails. Snails tend to have issues with their shells dissolving in low pH water.
Exactly what I thought. Please correct me if I'm wrong but this is what I thought:
Kent's Liquid Calcium is Calcium chloride. So since calcium is a base, it will raise the pH and also the GH because GH measures calcium and salt.
And if I dissolved Calcium carbonate into the water, it would raise all three because KH is carbonate hardness.
Did I get that wrong?
But that brings me to a new question about a GH test. If GH is both salts and calcium, how do I know if I have enough salt or enough calcium since the tests don't differentiate between the two? Or does it only tell me how much calcium I have? And if it does, how I do find out about how much salt I need?