How-to: Seashell Water-Soluble Calcium

Описание к видео How-to: Seashell Water-Soluble Calcium

Water-soluble calcium can be made using a number of materials, and while eggshells are the most common, for many folks near the ocean, seashells are an under-utilized resource. While there's lots of references to using oyster shells in particular, all seashells can be used, and there's very few examples of using seashells at all in this practice, so we decided to put a video together!

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