What can I use? I plan on buying a gh/kh test kit on amazon
People generally use crushed coral in a media bag placed in the filtration.. I use Seachem Equilibrium in my RO/DI water. It is more controllable.
I know an easy way to make water "harder". Put some in the freezer---lol Sorry, couldn't resist.
THAT IS GREAT LOL
Hahahaha ok! Will try!
You can also use cuttlefish bone (found in the bird section) and either place it in the filter or in the tank itself. Its a good source of calcium for snails.
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