Thanks for the level of detail. going to have to try this out though i think it might be the wrong season for me to find one, i'll have to see.
also crystals appreciate a low KH so having as you have is good. Baking soda however will raise KH so be careful and use sparingly. Neos on the contrary appreciate the higher kh.
ओं मणिपद्मे हूं
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Keeper of the LIST